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Stephen Hawking Suggests Black Holes Are Possible Portals To Another Universe (scienceworldreport.com)

An anonymous reader shares an article on Science World Report: Stephen Hawking, in a recent lecture held at the Harvard University, claimed that black holes could be portals to a parallel universe. The celebrated physicist spoke at length about black holes and suggested that they neither store materials absorbed by them nor physical information about the object that created them. Known as the information paradox, the theory goes against the scientific rule that information on a system belonging to a particular time can be used to understand its state at a different time. Over the years, it has been speculated that black holes do not retain information about the stars from which they are formed, except storing their electrical charge, angular momentum and mass. According to Hawking, as per that theory, it was believed that identical black holes might be formed by an infinite quantity of matter configurations. However, quantum mechanics has signaled the opposite by revealing that black holes could only be formed by particles with explicit wavelengths. If the characteristics of the bodies that create black holes are not deprived, then they include a lot of information that is not revealed to the outside world, according to the physicist. "For more than 200 years, we have believed in the science of determinism, that is that the laws of science determine the evolution of the universe" Stephen Hawking said. If information was lost in black holes, we wouldn't be able to predict the future because the black hole could emit any collection of particles."This is in contrast to some of Hawking's earlier views. In 2014, for instance, Hawking suggested that black holes don't exist, at least not like we think.

149 of 230 comments (clear)

  1. Determinism? by Viol8 · · Score: 1

    Correct me if I'm wrong, but I thought quantum theory killed that 100 years ago so whats the problem?

    1. Re:Determinism? by __aaclcg7560 · · Score: 4, Funny

      The problem is undetermined.

    2. Re:Determinism? by DroolTwist · · Score: 1

      You're thinking of undeterminism, not determinism.

    3. Re:Determinism? by Flavianoep · · Score: 5, Funny

      No, it was not determinism that quantum theory killed. Under Heisenberg's incorrectly named "principle of uncertainty," the exact position and momentum of a physical system cannot be measured a at the same time, but that doesn't mean they are undetermined, just that we cannot measure both of them at the same time. The term for it is Unschärferelation, that roughly translates as "unsharpness relationship", but due to Slashdot's lack of support of Unicode at the time, it was not possible to keep that in the original German, so the translation "principle of uncertainty" was adopted [source].

      --
      Linux is for people who don't mind RTFM.
    4. Re:Determinism? by __aaclcg7560 · · Score: 2

      It's indeterminate. ;)

    5. Re:Determinism? by Anonymous Coward · · Score: 1

      No, it was not determinism that quantum theory killed. Under Heisenberg's incorrectly named "principle of uncertainty," the exact position and momentum of a physical system cannot be measured a at the same time, but that doesn't mean they are undetermined,

      Nope. It does really mean that they are undetermined, regardless of our measurements. There is no hidden variables. Quantum world is *really* that strange/uncanny,

    6. Re:Determinism? by AchilleTalon · · Score: 1

      You should terminate this conversation.

      --
      Achille Talon
      Hop!
    7. Re:Determinism? by AchilleTalon · · Score: 1

      Well, you should be more accurate. So far, what all the experiments demonstrated using the Bell's inequalities is there is no local hidden variables.

      --
      Achille Talon
      Hop!
    8. Re:Determinism? by __aaclcg7560 · · Score: 1

      Only at the event horizon.

    9. Re:Determinism? by Austerity+Empowers · · Score: 2

      Before we go down the road of namecalling, how about trying to offer up a proof? Most of us do not learn quantum mechanics in school, nor is it relevant to our lives in a direct way, thus all we have are vague and imprecise english to summarize things, and as it happened, most of the key people in this field were German. And that's why we use math and not english to talk about science.

      My attempt, and I am probably wrong I took one semester of modern physics to satisfy a degree requirement, is that if p=mv, (where p is momentum, not position), you can see clearly that uncertainty is mathematical definite, not an empirical approximate as derived from newtonian physics. Position is the first derivative of velocity, defined as lim(h->0) (v(t+h)+v(t))/h. As h approaches 0, this equation blows up to plus or minus infinity. Thus if we know velocity precisely, we thus cannot be sure about position: that equation explodes. Going the other way, if we know position precisely, we have no way of knowing velocity (change in position) without a second data point. If we know two positions precisely, we only know average velocity (h>0, above). Thus the best we can do is describe these quantities simultaneously is using stochastic methods. This is another branch of mathematics that most of us never touch, and makes reading actual quantum mechanics theories very challenging.

      That it is a mathematical impossibility to resolve this uncertainty derives directly from newtonian physics, no quantum magic required. Now you can still cling to the hidden state argument: that just because we cannot know these things does not mean they do not exist: possibly your billiard ball has a definitely position and definite velocity and it is our mathematical model that is not up to the task. This boils down to an unhelpful theory is unhelpful, we can assume they exist, but we can only approximate their values so back to square 1. In quantum mechanics, this idea of hidden state has been continuously asserted and refuted via empirical testing. That doesn't mean it's wrong, we may still be entirely ignorant about what is really going on, that's what scientists do and why every time they say they're "almost done", something crazy happens. It seems to me that a lot of scientists are willing to let the very odd behaviors they see in quantum mechanics pass by rather than seeking a deeper truth.

      On the other hand, a lot of useful things can be done with the state-free model, and that's where I prove myself again to be an engineer and not a scientist - if a model exists that i can use to build something, it is good enough for me.

    10. Re:Determinism? by Anonymous Coward · · Score: 1

      Yes, 6 * 9.

    11. Re:Determinism? by lgw · · Score: 1

      Nope. It does really mean that they are undetermined, regardless of our measurements. There is no hidden variables. Quantum world is *really* that strange/uncanny,

      The whole "there are no hidden variables" thing is just an quick English phrase standing in for complex math. Don't read to much into it.

      The wave function is completely deterministic, forwards and backwards. Real-world observables like position and momentum are not state captured by the wave function - nothing in classical physics is, really. It's the mapping between the wave function and what we can observe that is non-deterministic (well, again, the math is more complex than the English, but it's partly non-deterministic in a complicated way).

      The best way to think about this is that intuitive properties like position and momentum are emergent from a complex system. An electron simply isn't a point particle with a specific position - it's not that it's non-deterministic, so much as the idea is just wrong - but at human scale a table still has a defined surface, made up of a bunch of electrons giving the illusion of solidity.

      --
      Socialism: a lie told by totalitarians and believed by fools.
    12. Re:Determinism? by Wargames · · Score: 1

      It seems we are all alone in this together.

      --
      -- Each tock of the Planck clock is a new world and here we are still life. --
    13. Re:Determinism? by Wargames · · Score: 1

      Or... the event/act-ual creation of a quantum computer changes the universe in/which it does.

      --
      -- Each tock of the Planck clock is a new world and here we are still life. --
    14. Re:Determinism? by Applehu+Akbar · · Score: 1

      "Until you realise that even a infinite multiverse is not large enough to contain Infinite^infinite universes."

      Georg Cantor, one of the endless array of white phones in front of you is ringing. And you will not find out which one if you spend the rest of your life looking for it.

    15. Re: Determinism? by c4t3l · · Score: 1

      Damn this copy-on-write universe!

    16. Re:Determinism? by Jamu · · Score: 1

      Position is the first derivative of velocity, defined as lim(h->0) (v(t+h)+v(t))/h. As h approaches 0, this equation blows up to plus or minus infinity.

      It can do that, but physical derivatives are usually well-behaved. Even General Relativity is mostly well-behaved except for the singularities inside black holes, and maybe the ones outside (toroidal) black holes. Take v(t) = 0 as a trivial example. lim(h->0) (0 + 0)/h. As h approaches 0, this equation is equal to 0. Scientists accept the "odd" behaviors of quantum mechanics because they agree with experiment. A deterministic theory would have "odd" behaviors too. If you want to see why, here might be a good starting point.

      --
      Who ordered that?
    17. Re:Determinism? by david_thornley · · Score: 1

      If your measurement changes another value, then you are measuring incorrectly.

      In which case there's plenty of things on the quantum level that we can't measure correctly. Fortunately, this doesn't stop actual scientists.

      --
      "When you have eliminated the unacceptable, whatever is left, however improbable, must be the truthiness" - Holmes
    18. Re:Determinism? by david_thornley · · Score: 1

      So what happens when we observe something? At that point, the thing we're observing is in a particular state, regardless of what the wave function was earlier, and the wave function has changed accordingly in an unpredictable way.

      --
      "When you have eliminated the unacceptable, whatever is left, however improbable, must be the truthiness" - Holmes
    19. Re:Determinism? by david_thornley · · Score: 1

      You're assuming that an object has a hidden variable that determines the probability of what is measured. That has been examined and found to be false (see Bell's theorem). There are no local hidden variables.

      --
      "When you have eliminated the unacceptable, whatever is left, however improbable, must be the truthiness" - Holmes
    20. Re:Determinism? by RockDoctor · · Score: 1

      and as it happened, most of the key people in this field were German

      Hmmm, there certainly were some Germans. But "most"? Off the top of my head, there was de Broglie (French), Bohr (Danish), Planck (German), Heisenberg (German), Compton (American), Einstein (Swiss, most of the time), Schroedinger (Austrian), Born (German), von Neumann (Hungarian), Dirac (English), Pauli (Austrian), [list continues]. Certainly there were plenty of German speakers in the development, but probably not even a majority.

      In any case, if this were true, why would this be an excuse to do anything other than learn sufficient German? I'm doing exactly that at the moment, though for family reasons not QM reasons.

      --
      Birds are not dinosaur descendants;birds are dinosaurs, for all useful meanings of "birds", "are" and "dinosaurs"
    21. Re:Determinism? by lgw · · Score: 1

      Well, we have to be careful with the English terminology. There are two effects here. One is, in a very intuitive way, when we measure something we affect it because of how we do the measurement. Find the position of an electron by slamming a photon into it, and obviously you've changed the system, wave function and all. This is not a fundamental limitation of physics, as it turns out, just a very difficult experimental problem.

      Separately, when we measure the position/momentum of an electron (or any other paired values), we can dial in some proportion of uncertainty for both, depending on how we measure. Whatever range of uncertainly is left isn't merely unmeasured but actually indeterminate. The difference is subtle, but in this sense the measurement doesn't change the wave function, it's just inherent in the mapping between the wave function and what we measure. The wave function has variables with the same degrees of freedom as position x momentum, but they each represent a composite of both.

      --
      Socialism: a lie told by totalitarians and believed by fools.
  2. Not quite logical by slashmydots · · Score: 5, Interesting

    If the mass completely leaves the universe for another universe, why would the gravity be left behind? Also we still can't retrieve the information about the matter that entered without leaving this universe. Also, black holes from other universes should perhaps then spew random massive particles into our universe somewhere and we wouldn't be able to use its vector to determine where it came from AND it would start interacting with matter in our universe which would mess with the back-tracking of information on movement. So much for information preservation.

    1. Re: Not quite logical by Anonymous Coward · · Score: 1

      Huh, wouldn't the black hole itself constitute a massive particle?

    2. Re:Not quite logical by Viol8 · · Score: 5, Interesting

      "If the mass completely leaves the universe for another universe, why would the gravity be left behind?"

      I wondered something similar when they kept saying the singularity in a black hole has zero size. Well something with no dimentions doesn't exist so how can it still have a gravitational field? Unless because time is so slowed inside a black hole relative to outside that from an outside observers point of view the singularity essentially never forms.

    3. Re:Not quite logical by Anonymous Coward · · Score: 1

      I am not an astrophysicist but i thought the reason a black hole would still have mass and gravitation is that not only is the mass compressed to a geometric point but the resulting gravitation that causes time to appear to effectively stop also compresses the space that contains it.

      Basically that if you could be an observer within the geometric point the amount of space within that point would be near infinite and the surrounding space outside that point would be unobservable.

    4. Re: Not quite logical by MightyMartian · · Score: 1

      I thought the fully deterministic universe wasn't all that popular these days, particularly with QM mucking things up, particularly at the earliest moments after the Big Bang, when quantum effects dwarfed gravity.

      --
      The world's burning. Moped Jesus spotted on I50. Details at 11.
    5. Re:Not quite logical by BarbaraHudson · · Score: 4, Interesting

      I am not an astrophysicist but i thought the reason a black hole would still have mass and gravitation is that not only is the mass compressed to a geometric point but the resulting gravitation that causes time to appear to effectively stop also compresses the space that contains it.

      Basically that if you could be an observer within the geometric point the amount of space within that point would be near infinite and the surrounding space outside that point would be unobservable.

      Sounds like our universe to me. It's a lot better than that BS "we may be a simulation" that was floated here a few days ago.

      --
      "Transparent" is a shit show that trades on every stereotype going. A man in drag is NOT a transsexual.
    6. Re:Not quite logical by Maritz · · Score: 2

      Also we still can't retrieve the information about the matter that entered without leaving this universe.

      This is exactly the stuff that Hawking was contradicted on by Juan Maldacena, Lenny Susskind and so on. You can get that information back out, you just have to wait for the black hole to dissolve. That won't happen much until the ambient temperature of the universe drops lower than that of the black hole, and even then it's slow. Something like ten to the hundred years for a stellar-sized black hole to disappear completely.

      But what those guys demonstrated is that the hawking radiation carries the information about what went in. That's why Hawking conceded defeat.

      --
      I do not want your cheap brainburning drugs. They are useless for work. And I am a working man today.
    7. Re:Not quite logical by caffiend2049 · · Score: 1

      Perhaps the black hole is a universe unto itself. Matter captured thereby could be expressed as spacetime to the "included universe" and explain inflation and other changes to expansion. Tiny bits of contraction could relate to long periods of radiation into the external universe.....only to return to expanding when matter accretes into the blackhole from the "parent" dimension?

      --
      Pandering to the lowest common denominator would be less frequent if more people were prime numbers.
    8. Re:Not quite logical by Anonymous Coward · · Score: 1

      Sounds like our universe to me. It's a lot better than that BS "we may be a simulation" that was floated here a few days ago.

      Pardon, but from a logical point of view, the Simulation Hypothesis is absolutely flawless. Hence the discomfort we feel when we contemplate it.

    9. Re:Not quite logical by tnk1 · · Score: 1

      Calling the Universe a simulation is pointless. It certainly could be, but the simple fact that it shares some characteristics of what we would call a "simulation" doesn't make it a "simulated universe".

      That's like saying, "I think quantization is messy, so I am going to assume there is a Universe that doesn't have it because that would be less fake, or something".

      We have no frame of reference outside of the Universe. Everything else is mere speculation and completely unscientific. Assuming that the Universe is a simulation because it is quantized is just making shit up. How could you possibly falsify such a theory?

      Kind of an odd point for NdGT to make. You might as well believe in God, because you don't get a simulation without someone running one, and both concepts are at about the same level of scientific inquiry.

      Anyway, I think the simulation idea is interesting, but in scientific terms it's wankery.

    10. Re:Not quite logical by BarbaraHudson · · Score: 1

      I think his theory has too many holes to take it seriously :-)

      --
      "Transparent" is a shit show that trades on every stereotype going. A man in drag is NOT a transsexual.
    11. Re:Not quite logical by BarbaraHudson · · Score: 1

      So are a lot of paranoid delusions. Internally completely self-consistent. Doesn't make them true.

      Even he would have to agree, his theory is full of holes. He just claims that the holes in his theory are features. :-) Try the fish.

      --
      "Transparent" is a shit show that trades on every stereotype going. A man in drag is NOT a transsexual.
    12. Re:Not quite logical by tnk1 · · Score: 1

      Of course, I didn't say you *need* to believe in God, but that if we're going to go off the rails like this, you *might as well*.

      Honestly, someone who can program an entire universe is a better candidate for the whole God thing than some whitebeard in the sky, anyway. As for the more extreme characteristics of such a being, I agree that the possibilities are endless and include limited beings, but they could also include an Omniscient, Almighty, Perpetual and/or Infinite Being too.

      In any event, it's this sort of thing that annoys me about scientists. When they talk about science, they clearly know what they're talking about. When they go off the rails and start pronouncing about everything, from the economy to religion, and are considered to be authoritative there, I start getting annoyed. Nothing like making shit up to counter the stuff you think is made up.

    13. Re:Not quite logical by BarbaraHudson · · Score: 1

      You miss the point - internal consistency is not a valid criteria. There are plenty of novels and sci-fi stories that are internally consistent, but false. There are plenty of stories that are posted, both here and elsewhere, where internal consistency doesn't make it true. It is pure speculation. Until it's proven, I'm going to say "horse sh*t".

      --
      "Transparent" is a shit show that trades on every stereotype going. A man in drag is NOT a transsexual.
    14. Re:Not quite logical by Wargames · · Score: 1

      Wake up! You're dreaming!!!

      --
      -- Each tock of the Planck clock is a new world and here we are still life. --
    15. Re: Not quite logical by MightyMartian · · Score: 1

      I think you're mixing up what is meant by determinism. Quantum effects do not appear to be deterministic, in that individual events have some degree of randomness or unpredictability, but QM is probabilistic in that the sum of all quantum events will tend in one direction or another (i.e. the history of a single photon cannot be known with complete certainty, but the paths of a beam of light made up of billions or trillions of photons can be predicted).

      In this regard, while the laws that influenced the Early Universe certainly are testable, because quantum effects played such a huge role when the universe was too hot and dense for gravity to play a major part, the fundamental nature of quantum interactions means the universe could have turned out differently than it did, without violating any notion of the determinism of physical principles.

      --
      The world's burning. Moped Jesus spotted on I50. Details at 11.
    16. Re:Not quite logical by Mass+Overkiller · · Score: 1

      +1 Also, isn't the black hole a point because the math doesn't work quite right? I mean a singularity is basically infinity and in math an infinity is caused by math that is not quite right or accurate enough.

    17. Re:Not quite logical by RivenAleem · · Score: 1

      The Doppler shift of the universe shows us that the extremities are accelerating away faster than tings at the core. If the universe was contained in a black hole, then everything would be doppler shifted in reverse, with everything accelerating towards the centre.

    18. Re:Not quite logical by freax · · Score: 1

      Well, our universe expands. Perhaps particles are being added somewhere at its edges, and to make room for the new guys we get universe-wide expansion in return. Which would or could mean that we are inside a black hole (or, that our universe is a black hole) and particles, stars and planets are swirling around it and getting sucked in from time to time.

      But I don't know. I am not an astrophysicist.

    19. Re:Not quite logical by slashmydots · · Score: 1

      I always pictured a singularity as "large enough to exist but infinitely small otherwise" and left it at that. It makes sense because there's a popular theory that a black hole can spin faster than the speed of light because it has no measurable radius but does have "a" radius. Of course I completely made that infinitely small part up on my own and have no idea if anyone else also thinks that. Then people are saying it's like 1.000001x the width of a neutron or quark or something. That sounds outdated and wrong by now though. Then people said it has the radius of the plank length, which sort of makes sense. I think it could have just transcended the first 3 dimensions and is so far into another dimension that it no longer has width or length. That makes the most sense.

    20. Re:Not quite logical by david_thornley · · Score: 1

      Heck, old science was often consistent, but lacked explanatory power. Phlogiston was, as far as I can remember, a consistent theory and explained observations - until people made more observations.

      --
      "When you have eliminated the unacceptable, whatever is left, however improbable, must be the truthiness" - Holmes
    21. Re:Not quite logical by david_thornley · · Score: 1

      Usually a singularity is a point where the mathematical description breaks down. It doesn't have to be. The function f(x) = 1/x has a singularity at x = 0, in that the value goes to infinity and the function is discontinuous there. That is correct and accurate math. There's also the fact that physics doesn't have to behave in a way such that the math is convenient. If there's a physical singularity, there's a physical singularity, regardless of what we think about the math.

      --
      "When you have eliminated the unacceptable, whatever is left, however improbable, must be the truthiness" - Holmes
    22. Re:Not quite logical by BarbaraHudson · · Score: 1

      We simply don't know what happens in a black hole.

      --
      "Transparent" is a shit show that trades on every stereotype going. A man in drag is NOT a transsexual.
    23. Re:Not quite logical by BarbaraHudson · · Score: 1

      Yep. Even the aether is making a sort of comeback as a "universal substrate".

      --
      "Transparent" is a shit show that trades on every stereotype going. A man in drag is NOT a transsexual.
    24. Re:Not quite logical by bill_mcgonigle · · Score: 1

      Assuming that the Universe is a simulation because it is quantized is just making shit up. How could you possibly falsify such a theory?

      We build models about how it could work, see what predictions the model makes, and look for things that look like that for evidence. For instance, the noise between 10^-27 and h from the Polish gravity wave experiment and the Fermilab model. If the noise weren't there, that model would have been falsified.

      All we ever have are theories. We test them, and if their predictions are false, then we discard them and move on, leaving standing the ones that haven't yet been falsified.

      --
      My God, it's Full of Source!
      OUTSIDE_IP=$(dig +short my.ip @outsideip.net)
    25. Re:Not quite logical by RivenAleem · · Score: 1

      I get that, but given how everything accelerates towards a black hole, with things further away accelerating slower, then it is not unreasonable to assume that it continues behind the event horizon, given that the event horizon is only the point at which light cannot escape, and not as such a physical barrier. Beyond the event horizon, everything is still accelerating, but even faster than outside it, until...

      However, if things are still accelerating thus they are breaking the lightspeed barrier and all bets are off.

    26. Re:Not quite logical by BarbaraHudson · · Score: 1

      Actually, it's unreasonable to make any assumptions of what's going on in a black hole at this point. We just don't know.

      --
      "Transparent" is a shit show that trades on every stereotype going. A man in drag is NOT a transsexual.
  3. Stealing from Disney.... by martiniturbide · · Score: 4, Interesting

    I knew I hear this idea before :) It is like we need a reboot of it with an overhauled V.I.N.CENT. https://en.wikipedia.org/wiki/...

    1. Re:Stealing from Disney.... by Sloppy · · Score: 1

      I haven't seen that movie since I was a little kid (and I liked it!), and now I'm afraid to (because I probably won't like it). Dare I?

      --
      As copyright owner of this comment, I authorize everyone to defeat any technological measure which limits access to it.
    2. Re:Stealing from Disney.... by rfengr · · Score: 1

      Ditto. Re-watched it after 36 years with my 6 YO recently, and he liked it. It was OK. The only thing I remembered as a kid was Maximillian killing the guy with the saw blade; not as dramatic the second time around.

    3. Re:Stealing from Disney.... by martiniturbide · · Score: 1

      Look this reference from Wikipedia "In 2014, astrophysicist Neil deGrasse Tyson deemed the film to be the least scientifically accurate movie of all time." Neil knows about physics but not about sales... a new movie reboot has potential :)

    4. Re:Stealing from Disney.... by Lije+Baley · · Score: 1

      I'm no stranger to science, but this is still one of my favorite movies. I suppose that I tend to watch movies with the eye of a child and not that of a critic though.

      --
      Strange things are afoot at the Circle-K.
    5. Re:Stealing from Disney.... by Dahamma · · Score: 1

      Sounds like a rap battle between NgDT and MC Hawking is about to go down!

  4. Sphere of Annihilation by Infiniti2000 · · Score: 5, Funny

    Going through a black hole will destroy you, much like a sphere of annihilation. This article reminds me of one of my favorite D&D stories. As relayed by another DM of a group of relatively inexperienced (new) players, they had encountered a sphere of annihilation. One player touched it and promptly vaporized into nothingness. One of the remaining party members said, "Oh, it must be a portal! Quick, everyone, jump in!" Four more pops later and the DM had to decide between a TPK or a new adventure in some otherworldly plane.

    1. Re:Sphere of Annihilation by xxxJonBoyxxx · · Score: 2

      >> TPK or a new adventure in some otherworldly plane

      Always a good time to introduce the Dark Sun campaign, IMHO. That's always played like an outer ring of hell.

    2. Re:Sphere of Annihilation by Infiniti2000 · · Score: 1

      Yeah, honestly I don't know what he decided to do. But, either Dark Sun or Hollow World are good choices if he went that route.

  5. Spiraling galaxies by Anonymous Coward · · Score: 1

    I was vacuuming some drywall dust out of the air the other day and noticed that as the airborne dust approached the vaccuum host, the air started swirling.
    I imagined the dust particles as stars, and the vacuum as a massive black hole. I wonder if all the galaxies are spiraling due to some supermassive, as-yet-undetected gravitational force.

    1. Re: Spiraling galaxies by Bruha · · Score: 1

      It's called drag. Gravity of the black hole pulls on the nearest matter and that matter pulls on the matter nearest to it. If black holes are moving dark matter as well then that's all the mass you need to move the rest of a galaxy.

    2. Re:Spiraling galaxies by l0n3s0m3phr34k · · Score: 1

      You mean something like this?

  6. least plausible by ooloorie · · Score: 4, Interesting

    "Portals to another universe" sounds like the least plausible model of black holes. More plausible are non-singular models in which the matter simply transitions into another state inside the black hole; examples are the gravastar and the dark energy star; there are many other possibilities.

    It also seems odd to me that people would cling to the "information paradox" as if there were some good reason to believe it. If you truly believe that there is a singularity at the center of a black hole, why wouldn't you also believe that it can destroy information? Conversely, if you try to preserve information in a black hole, it seems to me that you are effectively already modeling an object other than a singularity.

    1. Re:least plausible by ooloorie · · Score: 2

      How is that different from the implications of the summary of the article written by someone who wasn't in the class and heard someone talking about it?

      I have no idea how it is different, not having attended the lecture. I just thought it was worth pointing out that other people have thought about these issues before and come up with various explanations. As for Mazur and Mottola's gravastars, it's possible that Hawking's lecture referred to their model and the summary just misattributed it to Hawking and then described it poorly.

    2. Re:least plausible by painandgreed · · Score: 1

      It also seems odd to me that people would cling to the "information paradox" as if there were some good reason to believe it. If you truly believe that there is a singularity at the center of a black hole, why wouldn't you also believe that it can destroy information? Conversely, if you try to preserve information in a black hole, it seems to me that you are effectively already modeling an object other than a singularity.

      Well, the reason they don't like information being destroyed is because of this thing called the Second Law of Thermodynamics. If that information is being destroyed, then the Second Law of Thermodynamics is false, and then we've got to readdress all of physics as one of the foundation premises is wrong. Unless, of course, the black hole goes to another universe, then we are not in a closed system and all is good once again. However, keep in mind that any time that physicist like Hawking say things like "information", "entropy", or "universe" it is probably being simplified several steps from what they really mean which is represented by mathematical equations involving English and Greek letters, very few numbers, and often symbols you wouldn't recognize without some graduate physics courses in tensor calculus. Anytime you read something like this, you are really getting the physics explaination you can understand like when a computer tech explains to the secretary that her computer doesn't work any more because the magic smoke got out. As a car analogy, your questions about destroying information are like interjecting into a conversation of car mechanics speaking of torque, rpms, and horsepower about why you can't just make the car go faster by carving a hole out of the floor of the car so you can push the pedal down farther.

    3. Re:least plausible by ooloorie · · Score: 1

      Yes, you're right that this is linked to the second law of thermodynamics. But in thermodynamics, this law is actually an axiom based on the kinds of macroscopic systems people have observed. And in statistical mechanics, it is a subtle statistical statement about large systems and their evolution over time, concepts that break down for black holes. Finally, invalidating a physical "law" under some extreme conditions usually has little effect on existing physics; we still teach and use classical mechanics despite the existence of quantum theory and general relativity. So nothing bad would happen to most of physics if this were invalidated for black holes.

      Don't let all the Greek letters intimidate you; knowing them is useful for calculations and arguments, but they are a poor second to actual understanding. Einstein worked out the theory of relativity before he put it into formulas, and many mathematical proofs are also first worked out before being put into formulas.

  7. Re:Sane people suggest by SpankiMonki · · Score: 2

    You know, trolling around here is properly done with a degree of subtlety. Problem for you is one doesn't need to read past your handle without knowing you're a troll.

  8. Re:Sane people suggest by Viol8 · · Score: 1

    He's an idiot is he? Oh ok then, if you say so. You'll be able to point us to some papers you've written disproving some of his theories then won't you Mr Genius.

  9. Paradigm longevity by Empiric · · Score: 2

    "For more than 200 years, we have believed in the science of determinism..."

    Our culture being steeped in Newtonian mechanics (where everything is fundamentally predictable) for a very long time has had a strong psychological influence, even after QM comes along to show that determinism itself is very questionable as a principle.

    Supervenience is a trickier question than most realize, even top-flight physicists.

    --
    ~ Whence do you come, slayer of men, or where are you going, conqueror of space?
    1. Re:Paradigm longevity by mbone · · Score: 1

      "For more than 200 years, we have believed in the science of determinism..."

      Our culture being steeped in Newtonian mechanics (where everything is fundamentally predictable) for a very long time has had a strong psychological influence, even after QM comes along to show that determinism itself is very questionable as a principle.

      Supervenience is a trickier question than most realize, even top-flight physicists.

      Hawking is arguing that, in order for quantum mechanics to work, a black hole has to be deterministic (albeit in a way that we could never possibly check).

      Schrodinger's equation is deterministic (unitary). It's measurements that introduce uncertainty, oddly enough by making some things certain.

    2. Re:Paradigm longevity by TomGreenhaw · · Score: 1

      ...or the universe is deterministic but the exact mathematical model would need to take into account the state of every massive and charged particle in the entire universe. Because of this concept, a statistical tool like QM is a useful approximation. Approximations like QM may not be the whole exact truth, but they are extremely useful. Approximations such as Newton's laws were used by mankind to send Voyager probes outside the solar system.

      Although there are crackpot physicists who point to weird results from fictional mathematical stories, credible physicists understand that a cat cannot be both alive and dead until observed.

      Just a couple more points:
      >No time travelling photons, going backwards in time
      Yep - no time travel. Time emerges from all particles' massive and electric influence on space which we say travels at the speed of light. Fictions like Dirac's equations implying that antimatter travels back in time are consequences of flawed equations that even Dirac knew did not accurately represent the true nature of reality.

      >changing their wave/particle nature
      Particles are waves. Credible physicists understand this. Photons are quantized because they are created by the motion of electrons whose orbitals have fixed dimensions dictated by the electric influence of the atom's nucleus. Einstein said as much when he explained the photoelectric effect by showing the quantum nature of the photon. Particle/Wave duality is a common semantic misunderstanding spread by people who have difficulty explaining and understanding this concept.

      >All the theory built on this simple misunderstanding now a total joke.
      I agree that there are a bunch of crazy ideas in physics (don't get me started on dark matter), but I can't agree that quantum mechanics is a total joke.

      --
      Greed is the root of all evil.
    3. Re:Paradigm longevity by david_thornley · · Score: 1

      The Universe doesn't have to be deterministic for science to work. That you are so convinced of determinism is a psychology problem, not a physics problem, because the experimental evidence is that the Universe isn't deterministic at a quantum scale, meaning that the evidence is thoroughly against you and you're almost certainly wrong.

      --
      "When you have eliminated the unacceptable, whatever is left, however improbable, must be the truthiness" - Holmes
  10. Re:Sane people suggest by Penguinisto · · Score: 4, Insightful

    Okay, idiot parent troll/spite/whatever aside, there is a small kernel of something that did strike my mind.

    Hawking was once incredibly brilliant, in spite of the massive debilitation from ALS, a normally fatal disease that he's (so far) outlived by at least a factor or four.

    That said, insofar as his brilliance, I think that time has sadly passed, or has slipped enough that seriously, unless there's solid math or observation backing it up, maybe the press should stop breathlessly reporting everything he says.

    Like in this case, for instance. Where is the math for it? Seriously?

    --
    Quo usque tandem abutere, Nimbus, patientia nostra?
  11. and the proposal for testing it is? by 4wdloop · · Score: 1

    One can possibly fit many (infinite) mathematical models here, no? So I am dubious if this ever gets resolved.

    --
    4wdloop
    1. Re:and the proposal for testing it is? by gtall · · Score: 1

      Actually, new mathematical models create black holes sucking in all manner of discourse and reasoning. What fails to flow out of them are particles of Enlightenment. That's what make them so devious.

  12. Now build a stargate to be able to safly use it by Joe_Dragon · · Score: 1

    Now build a stargate to be able to safely use it!

    1. Re:Now build a stargate to be able to safly use it by the_Bionic_lemming · · Score: 1

      The only thing stargates and black holes had in common was they made quite effective weapons. Course the learning curve to use it almost cost us the Earth....

      --
      _ _ _ Go for the eyes Boo! GO FOR THE EYES!
  13. Re:Sane people suggest by bondsbw · · Score: 5, Insightful

    For Hawking, it's worth listening to his intuition even if he doesn't yet back it with science. It's not like he's some quack that has never made a solid discovery. Maybe he or someone else will take his ideas and put forth the work to reconcile them.

    I agree that the press should never report his ideas as fact or even probable until there is an adequate basis for that claim. For now this needs to be classified as musings of Hawking, and that's all.

    --
    All my liberal friends think I'm a conservative, all my conservative friends think I'm a liberal.
  14. Consoling a friend? by Gravis+Zero · · Score: 4, Funny

    Fry> Don't cry Bender. Nobody really knows what happens in a black hole. It's possible she's still alive in another dimension somewhere. Right, Professor?
    Professor> Oh why yes, absolutely!
    *Professor turns to Zoidberg*
    Professor> Not a chance.
    *Professor mimes being hanged*

    --
    Anons need not reply. Questions end with a question mark.
    1. Re:Consoling a friend? by Reaper9889 · · Score: 1

      I think both are right, really. We do NOT know what goes on in a black hole. We DO know that you will get ripped to shreds before you get inside, though.

    2. Re:Consoling a friend? by Anonymous Coward · · Score: 3, Funny

      #blackholesmatter

    3. Re:Consoling a friend? by wonkey_monkey · · Score: 4, Informative

      We DO know that you will get ripped to shreds before you get inside, though.

      If the black hole is big enough you can cross the event horizon without feeling so much as a pinch.

      --
      systemd is Roko's Basilisk.
    4. Re:Consoling a friend? by azcoyote · · Score: 2

      Haha, that quote is exactly what was going through my mind as I read this abstract, too.

      The comment below by Reaper9889 is correct and thus highlights the fact that one could argue that the black hole goes to another universe but still kills whatever passes through. Nevertheless, this shows the silliness of the whole idea suggested now by Hawking. Any information that might be transferred to another universe would be essentially garbled beyond all recognition such that it would have only a nominal connection to this universe. A person goes in, and out in another universe comes some shadowy noise (of Hawking radiation?) that can never again be reassembled into a living person. On the other side, could we be sure that whatever "information" is really ever arriving from another universe? In fact, it is just as easy to conclude that whatever "arrives" is just random, meaningless noise with no basis in any universe whatsoever. Ockham's Razor would make such a multiverse assumption seem extremely improbable.

      Perhaps the biggest problem, however, is that normal people read this kind of "news" and think that black holes are portals that might bring living people to other universes. Thankfully we don't have to worry about people throwing themselves into black holes any time soon, but people do turn this kind of gibberish into metanarratives of meaning--similar to how Bender is comforted by the thought that maybe she could still be alive in another universe. The thought of infinite other universes helps us to forget the pain and evils of this one. Example: "Maybe our little human civilization will be meaningful after all because some small little information about it will be able to reach another universe in some way and some other intelligent race will know that we once existed and that we were intelligent, after all." (Richard Dawkins says something similar to this in one of his books, but premised not on multiple universes but on the endless expanse of space.) "We maybe," I reply, "But maybe when that garbled, scratchy, noise that used to be information comes through to the other civilization, just maybe they won't give a damn. How meaningful will that be?"

      --
      Incipiamus, fratres, servire Domino Deo, quia hucusque vix vel parum in nullo profecimus.
    5. Re:Consoling a friend? by tnk1 · · Score: 3, Informative

      You're right, for a supermassive black hole, like the one at the center of our galaxy, the gravitational shear between what you experience at your head and your feet is basically like what you'd experience on the surface of Earth.

      However, if you did manage to get far enough in, with all the oddness that implies, you would experience increasing shear as you approached the singularity. Eventually, it would become strong enough to rip you apart.

      A "normal" stellar mass black hole would rip you apart almost immediately because the shear would be very high much less further in.

      Either situation is probably academic, as you'd have been charbroiled long before you entered the event horizon by the X-rays and extremely hot matter in orbit which has been accelerated by the black hole to extreme velocities and energies.

    6. Re:Consoling a friend? by JohnStock · · Score: 1

      You'd be vaporized as the energy levels and density due to friction near the event horizon is the most energetic energy levels in the universe. AKA Quasars

    7. Re:Consoling a friend? by Trogre · · Score: 1

      Well, yes, but you don't just stop at the Event Horizon. That's just the boundary within which there is no theoretical escape even for light. A bigger black hole just means you get to wait a little longer before being ripped apart by tidal forces as you approach the singularity.

      --
      "Nine times out of ten, starting a fire is not the best way to solve the problem." - my wife
    8. Re:Consoling a friend? by Anonymous Coward · · Score: 1

      From one's own perspective, you can never cross the event horizon. The event horizon is relative to the observer. Someone may observe that you've disappeared and "crossed over", but from your perspective, you're still far away.

      Both observations can be correct as long as those two frames of reference can never come in contact again. That's the problem when talking about blackholes, You can't use absolute terms, only relative terms. From the perspective of the person that has fallen in, they can still escape the blackhole just fine and go on to explore the Universe. The problem they will have is since they got very close, the rest of the Universe has aged considerably and has moved away from them.

  15. Um, My Mind Is More Of A Portal by zenlessyank · · Score: 1, Informative

    than some over magnetic particle shredder out in space. If nothing can escape the black hole then logic would suggest that you aren't going anywhere but to shreds even if you get close to it. Something that pulls things into it cannot very well send things out of it. There is but one universe and one reality. The wind blows the same whether you are on LSD or not. Your perception of the wind might change but it is still the same wind. I think Hawkings should stick to fucking with Sheldon.

  16. Another Possible Reality by FredK · · Score: 2

    Since the escape velocity from a black hole "exceeds" the speed of light, particles arriving at the event horizon have a lot of energy. The energy from these particles is enough for the creation of another universe. The space inside a black hole expands (in a direction orthogonal to our space dimensions) forming the big bang starting that universe.

    1. Re:Another Possible Reality by wonkey_monkey · · Score: 1

      The energy from these particles is enough for the creation of another universe.

      Is it? How much is that in jiggawatts then?

      --
      systemd is Roko's Basilisk.
    2. Re:Another Possible Reality by FredK · · Score: 1

      If the particles were at the speed of light that would be infinity watts, whatever that means.

    3. Re:Another Possible Reality by wonkey_monkey · · Score: 1

      It means they wouldn't reach the speed of light.

      --
      systemd is Roko's Basilisk.
    4. Re:Another Possible Reality by FredK · · Score: 1

      But doesn't it seem a little strange? The escape velocity is greater than the speed of light, but a particle falling in does not reach the speed of light (understandably). Maybe someone conversant in relativity can explain this.

    5. Re:Another Possible Reality by dadelbunts · · Score: 1

      I imagine its something like terminal velocity. Terminal velocity for a human for example is like 180 mph or something, need a helluva lot more to get out tho.

    6. Re:Another Possible Reality by FredK · · Score: 1

      Terminal velocity as you describe it is caused by drag. Drag has nothing to do with the escape velocity from a black hole.

    7. Re:Another Possible Reality by l0n3s0m3phr34k · · Score: 1

      at least 1.21 jiggawatts...once you hit the speed of light sailing into a black hole, your going to see some serious shit.

    8. Re:Another Possible Reality by amRadioHed · · Score: 1

      Mas can't move through space at the speed of light, however space-time itself can move faster than the speed of light and carry the mass with it. That's what happened during the big bang, and why distant galaxies can be observed receding from us faster than the speed of light.

      --
      We hope your rules and wisdom choke you / Now we are one in everlasting peace
  17. Re:Sane people suggest by tinkerton · · Score: 4, Insightful

    Agreed. Intuition is a valid part of scientific endeavour, though not many will agree on that. There should be a lot of freedom in how one constructs a hypothesis. It's still a guess. If it's completely grounded in experiment then it's not a guess.

  18. Quantum theory is completely deterministic by Anonymous Coward · · Score: 1

    Quantum Theory is completely deterministic of the wave function. You might not be happy with that because it is not the familiar a state variables position and velocity. But Schrodinger solutions are very precise wave functions, as long as you can form a Hamiltonian.

  19. Re:Sane people suggest by MightyMartian · · Score: 4, Insightful

    The guy's account is called "jewsdid911". I'm thinking you don't want to see the kinds of papers he writes.

    --
    The world's burning. Moped Jesus spotted on I50. Details at 11.
  20. Nature abhors a vacuum and singularities by idji · · Score: 1

    I am sure that as we know more we will remove these singularities and find that black holes are actually "black smears", even if that smear has a radius of a https://en.wikipedia.org/wiki/.... and then maybe all the information is still there. Things maybe simpler than we hope.

  21. Open your eyes. by mbone · · Score: 1

    Go outside. Open your eyes. You have just destroyed a host of quantum information - the quantum measurement process is not unitary.

    Why are we more special than a black hole? Why should we assume that we can cause the wave function to collapse just by looking at the stars at night but that a blackhole cannot do so even when it eats a star whole?

    I am with Penrose on this - it is simplest to assume that quantum systems will in fact no longer evolve unitarily under gravity, e.g.,, in black holes. Information will thus be lost - just as it is every time you use any of your senses.

    1. Re:Open your eyes. by l0n3s0m3phr34k · · Score: 1

      all we are is dust in the cosmic wind; sailing into a black hole

  22. Re:Sane people suggest by Anonymous Coward · · Score: 1

    Waffle != Senility

    Maybe his younger position is closer to "the truth," maybe not. He probably deserves serious consideration from the community regarding this new, conflicting, idea that may successfully incorporate a couple of decades of additional input that wasn't available when the previous position was formulated. I have more respect for an older scientist who can contradict his previous positions that I do one who defends their original claims to fame until death.

    Put another way: Einstein got lucky. Don't expect every brilliant insight to stand as truth forever.

  23. Portals to another universe by mysidia · · Score: 1

    claimed that black holes could be portals to a parallel universe.

    Portal to a parallel universe in which you no longer exist, or time stops for you, forever; if you are foolish enough to fly into one.

    1. Re:Portals to another universe by fisted · · Score: 1

      time stops for you, forever

      *facepalm*

  24. Blackhole mystisim by WaffleMonster · · Score: 1

    The so called information paradox is more likely to be a result of people fooling themselves than any strange happenings requiring exotic explanations involving other universes. An open box is always the low hanging explanation that conveniently explains away everything you don't understand.

    1. Re:Blackhole mystisim by MightyMartian · · Score: 1

      Random guy on Internet claims physicists are wrong, misunderstands optics and doesn't seem to understand gravity lenses don't work when they are really close by and filled with fucking stars. But hey, he must be a fucking genius.

      But of course, it's an electric universe advocate.

      --
      The world's burning. Moped Jesus spotted on I50. Details at 11.
    2. Re:Blackhole mystisim by UnknownSoldier · · Score: 1

      > Random guy on Internet claims physicists are wrong,

      Riiiight, because you know more then Halton C. Arp, a professional astronomer who, earlier in his career, was Edwin Hubble's assistant, and that you've personally verified he made mistake in every object documented in his "Quasars, Redshifts and Controversies", right?

      And you're published papers are where again?

    3. Re:Blackhole mystisim by MightyMartian · · Score: 1

      Appeal to authority, to someone who has been dead for decades and was an astronomer, not a physicist.

      But do go on showing what a lunatic you are. The scientific community has long moved past nonsense like the electric universe. It's just idiocy adopted by useless fucktards who are too lazy and too stupid, but so desperately want attention. You're a nobody, and you will forever be a nobody.

      --
      The world's burning. Moped Jesus spotted on I50. Details at 11.
    4. Re:Blackhole mystisim by UnknownSoldier · · Score: 1

      /sarcasm Obviously, we should listen to some random dude off the internet who claims an astronomer is wrong because clearly some random dude has years of experience, and published papers demonstrating that knowledge. Oh wait, he doesn't !

      Gee, if only we had a name for a person pretending they know more then a credited and published scientist ... Oh wait we do.

      An idiot.

      > The scientific community has long moved past nonsense like the electric universe.

      [[Citation]]

      --
      "Better to remain silent and thought a fool, then to speak and remove all doubt.

    5. Re:Blackhole mystisim by david_thornley · · Score: 1

      In other words, you're using one astronomer as the basis for saying things about physics. In science, anyone can easily be wrong, and the only way to know it is to get a lot of different points of view and see where they coincide.

      --
      "When you have eliminated the unacceptable, whatever is left, however improbable, must be the truthiness" - Holmes
  25. Re:Big bang = black hole goes boom by BarbaraHudson · · Score: 1

    Look, there won't be one universe, because anything that can create one universe can create N universes.

    Why? The act of creating the universe may render it impossible to create others.

    --
    "Transparent" is a shit show that trades on every stereotype going. A man in drag is NOT a transsexual.
  26. The Singularity Inductor by SMACX+guy · · Score: 1

    What actually transpires beneath the veil of an event horizon? Decent people shouldn't think too much about that.

    -- Academician Prokhor Zakharov, "For I Have Tasted The Fruit"

    1. Re:The Singularity Inductor by l0n3s0m3phr34k · · Score: 1

      "liberate tuteme ex inferis"

  27. Tales from a sentient chair by PanAmaX · · Score: 1

    Ever since his chair became self aware and seized control from Stephen a few years back its been spouting a lot of questionable statements.

    1. Re:Tales from a sentient chair by Not-a-Neg · · Score: 1

      I read the summary while imagining it being spoken by the voice of the computer attached to his chair that we are all familiar with. I then figured his cringed expression and eye movement were a desperate plea for help but that no one was bothering to verify his eyes were pointing to the same letters the computer was speaking. For all we know he has been trying to warn us that Skynet became active during the Reagan administration.

      --
      -==- Buy a Mac and leave me alone!
  28. He is right... by martiniturbide · · Score: 1

    ...it is a portal to Another Universe called "Death" :)

  29. Re:Sane people suggest by Anonymous Coward · · Score: 1

    Do you really think you'd understand the math? If he intuits something, I'm pretty sure he can
    back it up with some math supporting(not proving) it that is so far beyond both you and I that
    it isn't helpful to publish to the general public. I'd rather hear the intuition.

  30. Re:It's official. by Anonymous Coward · · Score: 1

    yet he's still more lucid than you.

  31. If the universe is just a computer simulation... by Vermonter · · Score: 2

    Then are black holes just portals to a different server?

  32. Re:Sane people suggest by Hognoxious · · Score: 1

    If it wasn't them, who was it?

    --
    Confucius say, "Find worm in apple - bad. Find half a worm - worse."
  33. Re:Black Holes Cannot Grow? by tnk1 · · Score: 1

    No, the mass of a black hole does grow. The mass of black holes can be measured.

    There are three things (and only three things) you can measure about a singularity inside a black hole: its mass, its charge, and its angular momentum. Obviously, for the black hole itself, you can measure the area of the event horizon as well, but the event horizon is not actually the singularity, but a border between where light can escape, and where it cannot. The event horizon's area and shape are defined by the singularity's mass (area of the event horizon) and the angular momentum (spinning singularities have "flattened" event horizons).

    Now that may sound like a lot of things you can measure, but it is actually the most sparse data sets known to exist for an object. And considering all of the things that get sucked into a black hole, you lose a lot of information about the original infalling matter when it is reduced to that.

    However, I thought that they had decided that the information was encoded into the event horizon as fluctuations, or was that just a theory?

  34. Re:Sane people suggest by Anonymous Coward · · Score: 1

    I'm thinking you don't want to see the kinds of papers he writes.

    Can't even use them when you run out of toilet paper, they're already full of shit.

  35. Re:Just a lot of heavy elements by tnk1 · · Score: 1

    Heavy elements are created by fusion inside of stars and also supernovae (which also frequently, but not always result in black holes). As far as I know, no black hole has ever exploded as nothing escapes from a black hole, and an explosion would seem to put the lie to that.

    As far as creating a new universe from a singularity, we may never know. There is some speculation on that, but we're unlikely to ever be able to see that due to the impenetrability of the event horizon.

    That said, our observations are that the Big Bang created mostly hydrogen, much less helium, and a trace of lithium. Heavy elements were not created in the Big Bang. We can see this with the Population II stars out there which are older and are metal-poor.

  36. Re:Sane people suggest by Rei · · Score: 1, Troll

    It's not "waffling", Slashdot's lack of understanding of cosmology notwithstanding.

    What Hawking said in 2014 was that black holes - in the context of disjoint regions of space irrevocably disconnected from our spacetime - do not exist.
    What Hawking is said now is... the same thing.

    Hawking did waffle on black holes, once; he was once of the view that information was lost irretrievably beyond the event horizon, but he conceded based on a large scientific debate that arose that this view was mistaken. While he's certainly refined the details of the mechanism and consequences since then (as have the many other cosmologists working on the problem), his overall view has not changed.

    A big area of debate which caused the "refining" was the so-called "firewall" paradox, which pointed out a variety of fundamental problems that come when you try to reconcile an effectively disjoint region of spacetime with the concept of information leaking out. The resolutions have been increasingly that black holes aren't nearly as disjoint as they first appeared to be.

    Honestly, with the way things are headed, I wouldn't be surprised if what we end up with is nothing more than a dilationary inflation gravity near the event horizon that leads to infalling matter being bent into a flat spacetime at the event horizon - not just a case of "no event horizon", but no singularity either. I've seen some work on this in the past, and it really would make a lot of the "weirdness" of the universe (from black holes to the Big Bang) become a lot less weird. The unification of black holes, inflation and the Big Bang leads to what I find to be a very satisfying "fate of the universe" scenario... the universe "bangs", black holes ultimately form, they drift unthinkably far apart over unfathomably long timespans, then they in turn bang in the exact same manner, creating new universes of their own. And contrary to how it may at first seem (that each new universe would be a small fraction the size of its parent), this wouldn't inherently be the case, as we also have dark energy in the picture.

    But that's just my take :)

    (Flat spacetime isn't really that weird... we live in spacetime that is, on the large scale, flat)

    --
    "99 dead duelists of Dios on the wall. 99 dead duelists of Dios! Take one's ring, pass it around..."
  37. Need to be a SMB by rossdee · · Score: 1

    unfortunately the common or garden tens of stellar mass black holes have too much gravitational gradient (tides) to be used

    You would need to have a galaxy centre super massive black hole (millions or billions stellar mass) thats not feeding at the time

  38. Ignore it by BarbaraHudson · · Score: 1

    His theory is so full of holes that he has to say it's not a bug, but a feature. :-)

    --
    "Transparent" is a shit show that trades on every stereotype going. A man in drag is NOT a transsexual.
  39. cool. So where is door from others to here? by WindBourne · · Score: 1

    Seriously, if these are portal to others, then there has to be portals from others to here. Where are they?

    --
    I prefer the "u" in honour as it seems to be missing these days.
    1. Re:cool. So where is door from others to here? by l0n3s0m3phr34k · · Score: 1

      Hawking suggests as quoted here that a black hole IS a white hole. The "portal from others to here" is the black hole, that's what the Hawking radiation actually is...the deconstructed matter from another Universe entering ours. "black holes and white holes are the same object. The Hawking radiation from an ordinary black hole is then identified with the white-hole emission"

    2. Re:cool. So where is door from others to here? by amRadioHed · · Score: 1

      Why do we need alternate explanations for Hawking Radiation? We've never even observed the stuff, we just think it exists based on our theoretical understanding of black holes. If we don't think it's created the same way now, who says it needs to exist at all?

      Also our previous understand of Hawking Radiation had it decreasing with the size of the black hole. With this change it seems the opposite would be true.

      --
      We hope your rules and wisdom choke you / Now we are one in everlasting peace
  40. Re:Sane people suggest by flopsquad · · Score: 2

    Well I'll be damned, I had no idea Jews did 911.

    **Thank you, people of the Jewsish faith, for giving the Unites States its emergency services telephone number! It is much easier to use than having to know the number for the local police department everywhere you go!!**

    Mod jewsdid911 +1 Informative, pls.

    --
    Nothing posted to /. has ever been legal advice, including this.
  41. Re:Sane people suggest by rochrist · · Score: 1

    You, of all people, calling Stephen Hawking an idiot is deeply ironic.

  42. Re:Sane people suggest by hey! · · Score: 1

    And speculation != waffling, so we're at least twice removed from direct evidence of Hawking's supposed senility.

    In any case what sets Hawking apart isn't infallibility; it's creativity. If you want to be a creative genius you can't worry too much about being wrong, any more than you can be a chess master and worry too much about losing material. It's part of the game.

    --
    Post may contain irony: discontinue use if experiencing mood swings, nausea or elevated blood pressure.
  43. Re:Sane people suggest by MightyMartian · · Score: 1

    Maybe it was you.

    --
    The world's burning. Moped Jesus spotted on I50. Details at 11.
  44. Stephen's mind is a portal to another universe. by TomGreenhaw · · Score: 1

    It's an imaginary universe simulated in his mind.

    --
    Greed is the root of all evil.
  45. You go first, okay? by RubberDogBone · · Score: 1

    OK Professor Falcon -I mean Hawking, please be the first to test your theory.

    Relatively few people, myself included, really want to be the first to jump in black hole to see if you are right.

    --
    Sig for hire.
  46. Re:Sane people suggest by MightyMartian · · Score: 1

    Read the guy's posts. He blames Jews for pornography.

    --
    The world's burning. Moped Jesus spotted on I50. Details at 11.
  47. Re:Sane people suggest by suupaabaka · · Score: 1

    Science isn't about being right all the time...

  48. Information coming here by CanadianMacFan · · Score: 1

    Since one of the key points of science is that there isn't a special point for your observations (for example the Earth isn't a special case) then we should be seeing information entering our universe from other ones. So what does this information look like after it passes through a black hole and how does it appear to the other universe? If we could look for that then it would be a good test for the theory. Or does the information just pass into a corresponding black hole in the other universe and isn't able to escape from that? If that's the case then it's a pretty useless idea.

  49. May have lost his marbles... by gweihir · · Score: 1

    Or he may be on to something. At this stage in a typical career of a great physicist, both things are possible. Hawking has always been a great creative thinker in his area of expertise, what he currently claims is not out of character and may well be valid. Outside if his area of expertise, he is a hack, see his uninformed rantings about AI for example. Also not untypical for this development stage of a great physicist. But what really matters is what other physicists think about his statements about physical things.

    The one thing that may not have been a good idea though is dumbing down his statements so that a general audience can "understand" them. General audiences are typically challenged to even understand simple scientific facts. They may just go along with them or reject them because they clash with some fuzzily defined beliefs. They routinely have no good justification for either behavior.

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    1. Re:May have lost his marbles... by iggymanz · · Score: 1

      "But what really matters is what other physicists think about his statements about physical things."

        What really matters is if his theory is a better model of reality than another theory. Reality doesn't care if your theory has a consensus of respected people.

    2. Re:May have lost his marbles... by gweihir · · Score: 1

      So you want to do science without people involved? That does not actually work in reality ...

      Sure, if there were a way to do it this way, i.e. to have some impersonal and reliable way to test whether a statement about physics is true, that would be preferable. But no such mechanism exists.

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      Most ACs are not even worth the keystrokes to insult them. Be generically insulted by this and ignored otherwise.
    3. Re:May have lost his marbles... by iggymanz · · Score: 1

      Your knowledge of the history of science is rather flawed, quite a few giants in the field worked alone for years and achieved great things.

    4. Re:May have lost his marbles... by gweihir · · Score: 1

      And these were recognized and remembered by whom? Seriously.

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      Most ACs are not even worth the keystrokes to insult them. Be generically insulted by this and ignored otherwise.
    5. Re:May have lost his marbles... by iggymanz · · Score: 1

      Men who worked alone, in collaboration with no one, for years to make their theories and built the foundations of our science, to have their theories' usefulness later vindicated.

      Just to name a few: Isaac Newton, Albert Einstein, Peter Higgs, Cavendish, Heisenberg and Dirac

    6. Re:May have lost his marbles... by gweihir · · Score: 1

      And unless other physicists had recognized the value of their work, nobody would remember them today. I never said that it was important what other physicists think about the work _immediately_. A few years and sometimes decades later is fine. But none of the Physics accomplishments of Newton, Einstein, Cavendish, Heisenberg or Dirac would have ever have been of any effect without other physicists (eventually) recognizing them as worthwhile.

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      Most ACs are not even worth the keystrokes to insult them. Be generically insulted by this and ignored otherwise.
  50. Re:Sane people suggest by flopsquad · · Score: 2

    Dear Autocorrect:

    You insist that when I type '>' I really meant to abbreviate Sergeant, and you will go to your grave convinced that 'href' is just me fucking up 'heed' multiple times every day. But when I type 'Jewsish,' you're like, "Shit yeah man looks right to me!"

    Get your shit together.

    Love,
    -floppy

    --
    Nothing posted to /. has ever been legal advice, including this.
  51. Re:Sane people suggest by david_thornley · · Score: 1

    Einstein had strong intuitions. When they were correct, we got relativity. When they weren't, we got new insights into quantum theory by figuring out why he was wrong.

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    "When you have eliminated the unacceptable, whatever is left, however improbable, must be the truthiness" - Holmes
  52. Proof please Professor by von+Stalhein · · Score: 1

    Show me the maths or no philosophical arguments can be entered into.