Mathematical Proof That the Universe Could Come From Nothing
TaleSlinger writes: One of the great theories of modern cosmology is that the universe began in a "Big Bang", but the mathematical mechanism by which this occurred has been lacking. Cosmologists at the Wuhan Institute have published a proof that the Big Bang could indeed have occurred spontaneously because of quantum fluctuations. "The new proof is based on a special set of solutions to a mathematical entity known as the Wheeler-DeWitt equation. In the first half of the 20th century, cosmologists struggled to combine the two pillars of modern physics— quantum mechanics and general relativity—in a way that reasonably described the universe. As far as they could tell, these theories were entirely at odds with each other.
At the heart of their thinking is Heisenberg's uncertainty principle. This allows a small empty space to come into existence probabilistically due to fluctuations in what physicists call the metastable false vacuum. When this happens, there are two possibilities. If this bubble of space does not expand rapidly, it disappears again almost instantly. But if the bubble can expand to a large enough size, then a universe is created in a way that is irreversible. The question is: does the Wheeler-DeWitt equation allow this? "We prove that once a small true vacuum bubble is created, it has the chance to expand exponentially," say the researchers.
At the heart of their thinking is Heisenberg's uncertainty principle. This allows a small empty space to come into existence probabilistically due to fluctuations in what physicists call the metastable false vacuum. When this happens, there are two possibilities. If this bubble of space does not expand rapidly, it disappears again almost instantly. But if the bubble can expand to a large enough size, then a universe is created in a way that is irreversible. The question is: does the Wheeler-DeWitt equation allow this? "We prove that once a small true vacuum bubble is created, it has the chance to expand exponentially," say the researchers.
So quantum fluctuations are "nothing" then?
1. Quantum fluctuations are not nothing, but I guess we have to sell headlines here
2. Inflation Theory seems faster than "exponential" expansion. We're talking about a theory that went from the size of a singularity to something bigger than the visible universe in 10^-32 seconds. Exponential is quite pedestrian compared to what is theorized.
The theory still implies something was there before...otherwise what were these quantum fluctuations "in" ?
Ex nihilo means literally nothing. There is not even the slightest trace of physical reality in the concept of ex nihilo. If quantum fluctuations are even possible, you are operating a level of existence above ex nihilo.
Please. Mathematics provides a basis to model the physics. The mathematical model is not the physics. Models fit the physical world remarkably well, but not perfectly. For example, the equations of Newtonian mechanics fit the observed world very well until we could measure relativistic effects accurately. There are singularities in many of these equations where the behavior of the model may not fit the actual physics. To assert that properties of the model at obvious singularities "proves" the physics should be looked at with a great deal of skepticism.
Against stupidity, the Gods themselves contend in vain. --Friederich Schiller
The nothing they are referring to is mass-energy. I think that basically they have mathematically confirmed the theory that a cold, empty false-vacuum universe could spontaneously spawn a bubble of stable true vacuum filled with the seething energy that eventually cooled to become the universe we see today.
--- Most topics have many sides worth arguing, allow me to take one opposite you.
>> Wouldn't there need to be "something" for the quantum fluctuations to take place in?
Turtles. Mofo'ing turtles all the way down.
Words rarely mean 'the same thing', esp when you are talking about domain specific language with an explicit taxonomy/lexicon.
Ok, so you don't actually have a car, but there is a parking lot, and you have pieces of cars and their antipieces (statistically, for every crankshaft, there is a crankshaft sized hole somewhere else), and given enough time a whole car worth of pieces appears in the parking lot, at which point the driver, who is now quite sick of having to watch where they are going due to the materialization of random heavy metal chunks in the air, can finally leave and get to their job at the car factory.
Oh, and probably something involving proprietary gas. All the cars made at the plant after this one all use Void brand gasoline and explode unexpectedly if you try using any other kind.
That the slashdotism currently at the bottom of the page is: "The universe is an island, surrounded by whatever it is that surrounds universes."
Of course there is: Everything appears due to interdependent coorigination. There's no beginning, and no end. All supreme gods are, like us, interdependent cooriginated beings who mistakenly believe themselves eternal and infinite and creators, but who will, in due time, also cease existing like everything, giving thus origin to other causal sequences. Behind it all the only constant is Vacuity, which we can access and become one with by following the eightfold path (right action, right thinking etc.), thus achieving the positive extinction of the self (nirvana).
Also, relying on a god, even a supreme one, is a fools' errand. No matter how many eternities you get to live in bliss in that god's paradise (or in torment in that god's hell), once he himself ceases to exist you're back at the starting point, still bound by causation. The only real escape is nirvana. Everything else is suffering either now, or in future, even if it's a very, very distant future.
That's Buddhism 101 for you. :-)
Conservatism: (n.) love of the existing evils. Liberalism: (n.) desire to substitute new evils for the existing ones.
Define "nothing". That's why you're confused.
Because a vacuum is "nothing". But there's energy and waves passing through it all the time.
To get "nothing", you have to remove the dimensions entirely so there's "nothing" to oscillate in at all.
In that case, what happens if a set of dimensions that we *can't* perceive as they aren't part of our reality exist out there? Is that "nothing"?
To us, "nothing" means nothing material or energy-based within the 3 dimensions we know and our time. That's quite a big nothing.
But outside of that, things still exist and we hypothesise that they might create universes like ours elsewhere. Hence it's not "nothing" at all. If fact, there might be billions of universes and a universe factory that pervades them all.
But, like a small child covering their eyes so you can't find them, just because we can't see them doesn't mean they don't exist.
I, for one, am thankful that people through history pursued 'pointless' research such as the motion of the heavenly spheres, the strange phenomenon known as electricity and though experiment involving looking at one self in a mirror approaching light speed.
Goodbye Slashdot. You've changed.
You cannot "mathematically" prove any properties of physical reality. You always have to abstract, losing accuracy. There is no way to prevent this inaccuracy and for proofs like this one, it is critical to not have this inaccuracy. Hence, this proof is meaningless. Really, this is basic stuff, stop getting it wrong.
Most ACs are not even worth the keystrokes to insult them. Be generically insulted by this and ignored otherwise.
You are missing that their claim is nonsense. They take a mathematical model that seems to fit reality and then claim things derived from that model apply to reality. That is not how it works, mathematical models are always inaccurate to some degree.
Most ACs are not even worth the keystrokes to insult them. Be generically insulted by this and ignored otherwise.
Sure...
As we all know a Fraction where the numerator and denominator are equal is equal to one.
All fractions with a numerator of 0 is 0
So the Fraction of 0/0 is both 0 and 1. so 0 = 1 QED.
If something is so important that you feel the need to post it on the internet... It probably isn't that important.
There was no before. Time was created with the Big Bang. Otherwise you are saying the Big Bang occured in a pre-existing universe, which is not the case. Then you have to ask yourself about this pre-existing universe and how it was created and so on. The before question is pointless.
Achille Talon
Hop!
Schrödinger's cat would have been a more common and well known argument, but that does not happen to fix the paradox of whether or not the Universe requires something in order to exist. Schrödinger's cat it's a separate paradox that attempts demonstrate that reality is not only subjective, but two alternative realities exist simultaneously.
A Universe from Nothing is a book that came out a few years ago, explaining the Expanding Quantum Vacuum theory (and has a few slight derivations). The problem is that "nothing" is completely bogus. EV/EQV requires that space, time, matter, energy, and all of the laws of physics already exist. Just like Big Bang which also can't resolve the paradox.
I happen to like this theory better than a big bang, but it has some problems that the BB crowd despises. Outside of the obvious evil competing theory, the Universe would be much older than BB claims.
-The wise argue that there are few absolutes, the fool argues that there are no probabilities.
"There are some ideas so preposterous that only an intellectual could believe them."
--- George Orwell
something from nothing, or at least the physical from the non-physical. Lets all just admit that there is a single Holy God, who created the physical universe as we know it. He has always, and will always exist in spirit (non physical). For reasons unknowable to us He decided to create the physical universe - logically there is no other possibility.
Invoking an uncaused god to "explain" an uncaused universe doesn't do anything except add a middle man, and ultimately leaves *more* unexplained than before.
Sheesh, evil *and* a jerk. -- Jade
There is no such thing as completely mathematical proof. All mathematical proof require some axioms (fundamental assumptions) and all proofs depend on those axioms. You can't prove something mathematically to someone who refuse to accept your axioms (and there is nothing wrong with it). For example, if I don't accept Euclid's 5th postulate, you can't prove me that sum of triangle is 180 degrees. The same goes for this proof. There are set of axioms and what the author is saying is that "if you accept my axioms, then" "i have a complete mathematical proof...". The title of this story eliminates the first part to sensationalize the second part.
Something had to create the nothing that created the something (the last something we call Universe)? That's an interesting theory. Why don't you try to prove it?
I don't have to prove it. Even Stephen Hawking accepts it and relies on it in "A Brief History of Time" It isn't new, what is new, for this research is that they have re-defined what nothing is. No longer is it the absence of everything, but now is a quantum vacuum. It ignores though, that for there to be a quantum vacuum, by definition there already has to be quantum particles, somewhere. And if quantum particles already exist, then so does the universe. Therefore, if nothing requires something, then it isn't really nothing. Put differently, if nothing really is something, then division by nothing (zero) is possible and we can prove that 0 = 1.