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Don't Talk To Aliens, Warns Stephen Hawking

Megaport writes "Promoting his new series on the Discovery channel, Stephen Hawking has given an interview to the Times in which 'he has suggested that extraterrestrials are almost certain to exist but that instead of seeking them out, humanity should be doing all that it can to avoid any contact.' He says, 'I imagine they might exist in massive ships, having used up all the resources from their home planet. Such advanced aliens would perhaps become nomads, looking to conquer and colonize whatever planets they can reach. ... If aliens ever visit us, I think the outcome would be much as when Christopher Columbus first landed in America, which didn't turn out very well for the Native Americans.' Personally, I've always thought that the indigenous people of the world really had no chance to avoid contact here on such a small planet, but is hiding under our collective bed an option for humanity in the wider galaxy?"

29 of 1,015 comments (clear)

  1. His Master's Voice by eldavojohn · · Score: 5, Insightful

    Interesting that I should wake up to find this article when I finished reading Stanislaw Lem's His Master's Voice last night before going to bed. It's one of the earliest books I've read that deals seriously with communications from space. I won't get into the details fo the book but instead pose equally speculative assumptions about advanced life that contradict Hawking (a man much respected in my eyes).

    As humans have "advanced" over the past two thousand years, it is apparent that killing each other is simply not productive. Well, this is apparent to me anyway. And I would argue that although the numbers have probably gone up for homicide on a world wide scale, there is far less nationalistic or religious conflict on the Earth today and the percentages of death related to that have dropped drastically since World War II. Were it not for this movement towards sanity and science, a lot of our technological advances would have been inhibited by 1) the effort it takes to exterminate your neighbor and 2) being killed by your neighbor. While military research brings advancements in other fields, the primary goal is stopping the enemy. Had scientists that invented napalm at Dow Chemical been given the same amount of resources to invent more efficient fuels and engines, I've no doubt they could have.

    Simply put: why is it that we assume an "advanced" civilization means that it is militarily advanced and not ethically advanced? Those two categories are not mutually exclusive and I would argue that any alien race not ethically advanced before becoming militarily advanced will simply continue to focus on killing each other. I will also posit that intergalactic travel is near impossible without the ability to understand anthropology. Using this logic, I would wager that the nomadic roving death squads are no more likely than the aliens in Asimov's Childhood's End that show up and help us technologically as well as ethically (we've still got quite a ways to go in some areas more than others).

    It's hard to agree with Hawking's assumption of aliens as it's more apparent they would simply die out from lack of resources before ever finding their first victims. I suppose all I have to offer is science fiction references since that's all that's being discussed here.

    --
    My work here is dung.
    1. Re:His Master's Voice by dotancohen · · Score: 3, Insightful

      They may be neither militarily advanced nor ethically advanced. They may simply be looking for more resources to exploit. Why assume that they either have a concept of ethics, that their ethics might apply to us, or that taking resources would be unethical in their view?

      --
      It is dangerous to be right when the government is wrong.
    2. Re:His Master's Voice by hansraj · · Score: 4, Insightful

      I know that projecting human values to any alien life form is heavily criticized, and you can't say with absolute certainty that any (technically advanced) alien life would share our ethics. Nevertheless I don't think it is unreasonable to assume that they would.

      It is safe to assume that any technically advanced life form would be a social life form and would rely on groups as opposed to mere individuals for making leaps in technical progress. And that necessitates evolution of characteristics like empathy, altruism and so on. It is not a stretch to assume that they would project their thoughts on to others the same way we do.

      Of course we can't be 100% sure, but it is still a reasonable thought.

    3. Re:His Master's Voice by gaspyy · · Score: 5, Insightful

      Not necessarily.

      Aliens could have a hive-like society, similar to ants or bees, where the individual is nothing. Surely you remember Ender's Game and its idea that the conflict was ultimately caused by the difference in society - the aliens could not comprehend an advanced society made of individuals alone. A hive-based society may discard empathy as inefficient. As a side-note, I think this is the direction of the reimagined "V" series - I think the aliens are "bug-like" rather that "lizard-like".

    4. Re:His Master's Voice by CrimsonAvenger · · Score: 4, Insightful

      But there's the basic problem that if they have no problem with taking resources from another civilization, what problem do they have with taking resources from each other?

      You are making the fundamental assumption that any random group of aliens would view us as "people". Given, as an example, the number of species we recognize as "people" currently, that's quite a stretch.

      --

      "I do not agree with what you say, but I will defend to the death your right to say it"
    5. Re:His Master's Voice by Teancum · · Score: 5, Insightful

      While I'm not necessarily disputing the argument here, I would like to know what possible resource we might have on the Earth that can't be found much, much more abundantly and in a form much easier to obtain elsewhere that can only be found on the Earth? Here are some common favorites in science fiction stories:

      • Water - Only the most abundant chemical compound in the universe, made up of two of the most common elements in the universe. Even in our own solar system, there are whole worlds made up of mostly water ice and major bodies, like comets, that literally announce their existence with a massive display of water. There may be "local" shortages of water (however you may define it), but it is incredibly common and easy to find this stuff. You certainly wouldn't need to engage in an interstellar or better an intergalactic journey just to get some extra water from little ol' Earth. There is enough water ice in the solar system (in chunks movable with human technology) to completely submerge the surface of Mars with a massive ocean, including Olympus Mons and not even touch the oceans of the Earth. Studies of other stellar planetary systems seem very likely to have the same quantity of free ice and perhaps even more than our relatively older solar system.
      • Meat - This is an argument that simply defies logic.... that somehow the aliens are going to "eat" us. Particularly given that we live in an industrial society, modern humans is one of the worst possible sources of protein that you can come from. We are top predators with a lifetime of accumulated chemicals, heavy metals, and parasites that would be and are lethal to anybody eating that kind of flesh. If an aliens society simply needed the protein for survival, I'm sure there are several rather large food processing corporations that would gladly provide domestic livestock in sufficient quantities to more than satisfy their needs anyway. How many McDonald's Hamburgers do these aliens really want and why is that not sufficient to be sold by.... McDonald's?
      • Unobtainium - More to the point, some sort of rare convergence of ultra rare elements that somehow made the formation of the Solar System unique, and some super-heavy element that also happens to be radioactively stable is found in our Solar System in quantities sufficient to send a massive mining party out to wipe out a species to get that mineral. Again, what possible mineral might this be? I admit that detailed geologic surveys of the whole solar system have yet to be done in significant quantity, but I think we got a pretty good idea of what elements are "out there" and based on stellar spectra we are quite confident that those same elements... at least to Uranium... are in fairly significant quantities.
      • Labor - Sort of back to the meat argument, but this time the aliens are needing "thinking" meat to get everything accomplished. Presuming that these aliens got into space starting from a planet somewhat like the Earth (why else are they coming here?) implies a certain minimum industrial base. More to the point, slavery generally has not been economical and there are usually significant alternatives to slavery even in those human civilizations where it was tried... where ultimately automated machines in some fashion ended up improving the productivity far better than what a slave could produce. When a horse can plow a field for less grain than you can feed a team of people to till and cultivate the same acreage, you use a horse. Again... these aliens are traveling incredible distances... for this?
      • The Earth itself - I'll admit that a planetary body with a liquid water ocean and sufficient atmosphere for prolonged habitation is a rather rare thing, so there may be some desire to seek for habitable planets. Still, for a civilization to send not just a single explorer or representative, but to send a massive invading army, are planets like the Earth really all that r
  2. Re:Security through obscurity? by boaworm · · Score: 4, Insightful

    Given how large the universe is, we don't even have to hide. As it seems hard to travel faster than light, we should be pretty safe :-)

    --
    Probable impossibilities are to be preferred to improbable possibilities.
    Aristotele
  3. They're not coming for us. by Oceanplexian · · Score: 4, Insightful

    I think we vastly overestimate how important we are.

    An alien race isn't going to travel light-years to have a cup of tea any more than we would travel to a remote corner of the earth to make peace with the native bacteria.

  4. Pathetic Earthlings... by cherokee158 · · Score: 3, Insightful

    "Pathetic earthlings. Hurling your bodies out into the void, without the slightest inkling of who or what is out here. If you had known anything about the true nature of the universe, anything at all, you would've hidden from it in terror." --Ming the Merciless

  5. Re:I've been saying this all along....! by garcia · · Score: 3, Insightful

    I have also been saying this all along but I disagree with you on this point:

    The enormity of the effort they would have to mount given the physics of space travel would be rather significant, and at great cost to themselves.

    Who's to say that they just don't think differently than we do? Just because we have a mental block about a particular bit of physics does not mean that they do too. I find it hard to believe that if they think like we do but have solved the physics problem of near light-speed travel that they wouldn't be able to handle their own natural resources for their population.

  6. Re:Security through obscurity? by pudge · · Score: 5, Insightful

    ALL security is effectively through obscurity. Because it's impossible to prove any security method to be secure, any and all security measures are put in place with the hope that any adversary doesn't know how to defeat those measures.

    Not true. Take the game of chess, for example. Everything in chess is right out in the open. There may be some misdirection involved, but nothing is actually hidden from the adversary. Yet you still have security measures in place.

    You don't put armed guards outside a military outpost in the hope that the enemy won't know HOW to defeat them; you just hope they won't try, because it's too difficult or costly. And if they do try, you will defeat them mostly with brute force, not with anything hidden or secretive.

  7. Earth Resources? by EmagGeek · · Score: 3, Insightful

    Ummm.. if they have intergalactic travel capability, they would be able to get any resource they needed from a much nearer source. After all, every resource we use here on earth is available in vastly larger quantities elsewhere in the Universe than on our tiny little rock. Every resource here came from somewhere else, remember?

    The argument that they would come here looking for resources is simply asinine.

  8. Self-unawareness by dr.g · · Score: 5, Insightful

    Our species, up to and including our most advanced thinkers*, is too wedded to unexamined assumptions and too fond of creating self-referential aphorisms and/or ironic maxims to realistically model first contact with non-human species.

    *-apparently.

    --
    "To be fair, I was left completely unsupervised." ~Anon
  9. Re:Security through obscurity? by stonewallred · · Score: 5, Insightful

    We are humans. As RAH said, we are probably the most warlike and violent race that has reached rudimentary intelligence in the universe. If there were other intelligent races, far advance of us, but with our innate bloodthirstiness and violent tendencies, we would dead. Look at the hostility the vast majority of humans have towards each other based on skin color or religion or where they live. Do you actually think humanity as a whole would welcome intelligent beings from another planet, especially if they were as different as us as we are from a fish? Pssh. If you do, you have more faith in humanity than all the religious folks have in their god(s) since the beginning of time.

  10. Re:Security through obscurity? by CarpetShark · · Score: 4, Insightful

    Or you know we might also win.

    Perhaps, but I highly doubt it. I think you underestimate just how advanced another civilisation would likely be, considering the galactic scale of travel they'd have to undertake to get here, and the galactic timescales over which they might have evolved. Most likely, the culture shock would be AT LEAST as jarring for us as that which native americans faced when presented with horses, rifles, whiskey, christianity, ocean-going ships, wagons, steam trains, buffalo hunters, miners, etc. Chances are it would be MUCH worse -- probably not even conceivable to our backwater, unevolved minds.

  11. Re:Security through obscurity? by Kjella · · Score: 4, Insightful

    Well, that highly depends on their timeframe. Hiroshima was bombed 60 years ago, but they rebuilt the city and according to wikipedia there's more than a million living there today. I'm not sure if it's exactly over ground zero but certainly not that far as it's still in the same bay. Spending some hundred years taking out all major forms of life and terraforming it to spec hardly seems impossible or unreasonable for an alien race of sufficient technological capability.

    --
    Live today, because you never know what tomorrow brings
  12. What...the...fuck by Anonymous Coward · · Score: 5, Insightful

    Everyone now wishes that somebody killed Hitler when he was a baby.

    No, they really don't. The common question which you've heard, "if you could go back in time and kill Hitler as a baby, would you?" is meant to generate ethical debate, and the answer is not meant to be obvious. In fact, with the same fervor that you would use in answering "yes" to that question, I would answer "no." Killing someone for crimes they have not yet committed is simply unacceptable in my world view, and life itself isn't as important to me as holding to such moral guidelines.

    In other words, I'd more than willing to accept the extinction of the human race over condoning the brutal "sterilization" of other sentient species. A species such as the one you describe isn't worth protecting.

  13. Re:Security through obscurity? by Nadaka · · Score: 5, Insightful

    Interstellar spacecraft are weapons of mass destruction.

    Above a significant fraction of the speed of light, any normal matter has an energy density greater than a nuclear weapon.
    Above a larger fraction of the speed of light, any normal matter has an energy density greater than an anti-matter reaction involving the same rest mass.

  14. Re:Security through obscurity? by Lumpy · · Score: 5, Insightful

    Why work so hard...

    If they have spaceships, then they can go out to the asteriod belt and hurl an endless supply of ammunition at us that would decimate us and pose no risk at all to the attackers.

    --
    Do not look at laser with remaining good eye.
  15. BRILLIANT! by denzacar · · Score: 3, Insightful

    That sounds like a great way to get "sterilized" yourself by:

    a) your own probes turned against you by the civilizations that you intended to "sterilize" OR by a computer glitch,
    b) by a civilization or civilizations that you have not yet met but who have already heard about your reputation,
    c) by a civilization that is way more developed than yours - as nobody likes living next door to a psycho,
    d) getting your civilization torn from inside by your own people or their psychoses due to the fact that not everyone is a heartless bastard willing to condone to a xenocide or two or dozen.

    --
    Mit der Dummheit kämpfen Götter selbst vergebens
  16. Re:Security through obscurity? by rtb61 · · Score: 5, Insightful

    The whole concept is one of paranoia. Considering the age of the galaxy, advanced species could be of immense ages. Any new interstellar aggressor species would find itself confronted by a whole range of progressively more advanced species each in turn more capable of deploying more advanced and often more subtle forms of social stabilisation. The simplest method by which to judge species and what measures may be required to control threats implied by them, is the way in which they interact with less advanced species.

    Much the same way a species upon it's own planet would be judged by the way they interact with each other, with suppositions of racial differences where none exist, of artificial regional divides, specifically demonstrated where a species one region preys upon and exploits the same species in another region, with claims of racial differences to hide, degenerative social diseases, like psychopathy and narcissism.

    So any threatening species would be dealt with, likely well before they became destructive upon an interstellar basis. The greater the gap in advancement the less likely communication will occur, as there will always be more similarly advanced species to fill that interaction and monitoring gap, who in turn would be monitored by next nearest level of advancement.

    Besides planets in reality are pretty crappy resources for any interstellar species, nebula and dust clouds have stupendously huge quantities of material available, sufficient to make thousands even millions of suns, already in affect mined, granulated to a fine powder and just requiring filtering to extract the desired elements.

    Humanity has to be far more concerned with how they interact with each other and how that interaction could be interpreted from an external viewpoint and whether it could be considered as potentially threatening and what actions are required to nip the threat in the bud. Whether it be social modification and, or culling of specific socially destructive elements.

    --
    Chaos - everything, everywhere, everywhen
  17. Re:Security through obscurity? by scotch · · Score: 3, Insightful

    Reference please.

    --
    XML causes global warming.
  18. Re:Maybe they're scared of us too? by kinabrew · · Score: 5, Insightful

    But seriously, if there are alien life forms, we don't even know that we'd be on the same scales as them.

    They could be a hundred meters tall or they could be microscopic. And they could perceive time in an extremely delayed manner(with our seconds feeling like hours to them) or an extremely accelerated manner(with our hours feeling like seconds to them).

    We don't know that the things on our earth that we consider natural resources are the same things that an alien civilization would consider natural resources. Humanity's waste products might be the things the aliens most precious needs, or their waste products might be things we could eat as food. Maybe they could eat dirt.

    I think that hiding makes sense until we have the capability for travel between solar systems, specifically because there is a possibility that aliens encountered would pose a danger to us, but to naturally assume that whichever ones we encountered would want to do things that would harm us seems a little too paranoid.

    Any group that is capable of such travel is likely to get their energy from somewhere, but even in our own solar system, is earth the biggest source of energy? Jupiter alone would likely provide millions of times the amount of power that could be obtained from Earth, and wouldn't have the danger of infection from Earth's bacteria and viruses. And the sun provides unmeasurable amounts of power compared to Earth. And even the sun isn't a large star.

    Compared to many others, our solar system would be like a crumb to any civilization searching for resources.

    And one last thing I wonder about: Is humanity's fear of extraterrestrial intelligence based on humanity's own instinct of survival of the fittest? And if so, is it reasonable to guess that other forms of intelligence would have such instinct? And would they even perceive us as competition? Or would they have out-evolved that need?

    It makes sense to be cautious and to attempt to not be found, but it's also good to have some perspective. We have no idea about the motivations of any intelligence that would contact us or come here.

  19. Re:Security through obscurity? by gyrogeerloose · · Score: 4, Insightful

    Do you actually think humanity as a whole would welcome intelligent beings from another planet, especially if they were as different as us as we are from a fish?

    And fish would probably be like our first cousins compared to whatever species might arrive on an alien FTL spaceship.

    --
    This ain't rocket surgery.
  20. Re:Security through obscurity? by ddt · · Score: 4, Insightful

    Given the complexity and inherent risk of these things, it seems considerably more reasonable to just create artificial life that doesn't need an atmosphere, water, day cycles, and all that organic nonsense.

  21. Re:Security through obscurity? by matty619 · · Score: 5, Insightful

    I'm always perplexed when people make this leap that the human species is war-like and surely no other sufficiently developed species could possibly be warlike. We are what we are because of a competitive evolutionary process. Survival of the fittest involves being warlike and fucking aggressive. Why you assume that any other advanced species evolved in any other way is beyond me.

  22. Re:Security through obscurity? by cgenman · · Score: 4, Insightful

    Say that our society went out and discovered that Mars was an earth-like, habitable planet with primitive life upon it. How would we interact with them?

    Chances are, we would see them long before we could actually get there en-masse. Maybe in the 1700's, we would have sensitive enough instruments to see the earth-like surface of the planet. Fast forward 300 years to the year 2K, we can expend a tremendous amount of resources and send a single scouting party over. For 20 or 30 years, the scouting party lives on Mars, gathering data and learning to live on the local climate / floura and fauna. They discover a particular plant that secretes a specific chemical very similar to a highly-expensive cancer drug currently in production on the Earth. A few production ships arrive to harvest the plant and launch the chemical back. A small private science team piggybacks, and finds moe financially rewarding chemicals on the planet. Humanity spreads its fingers, and native life is simply pushed back to the margins. A small shack becomes a 1 mile settlement, becomes a country of it's own. The native plants and animals go from being the dominant form of life on the planet, to living in an ever-shrinking reserve.

    And the more sentient animals might wonder why we didn't just make giant tin cans in the sky and live in those. The fact is, though, that making giant tin-cans in the sky is more expensive than finding viable hunks of rock with usable resourses already present. And if those sentient animals fought back, we'd probably just stop them as easily as we'd stop a groundhog invasion of New York City. Technological superiority doesn't mean winning a fight, it means sweeping unwanted elements off of a table. The natives only win in movies.

    It really all comes down to value. The value of a cylinder, more or less, is just habitable space. The value of a planet includes large volumes of otherwise rare elements or chemicals, biological materials, etc... all conveniently sitting there for the taking, and all of which would be needed to make cylinders anyway.

  23. Re:Security through obscurity? by MyLongNickName · · Score: 3, Insightful

    You seem like a really gay man.

    Of COURSE I mean happy... words never change meanings over time, do they?

    --
    See my journal for slashdot ID's by year. Mine created in 2005. http://slashdot.org/journal/289875/slashdot-ids-by-year
  24. Re:Security through obscurity? by mcgrew · · Score: 3, Insightful

    we are probably the most warlike and violent race that has reached rudimentary intelligence in the universe.

    That's a completely unwarranted assumption. We don't even know if there is life anywhere else. let alone intelligent life. And if there are other intelligences, there is no way to make even an intelligent guess as to how warlike or peaceful they may be; any guesses about other intelligences are out of pure ignorance; we have no data whatever.

    You might ponder the fact that almost every technological advance has come from war and violence. Why hasn't any nonviolent earth species reached sentience? And note that most species on this planet are violent.

    We even have violent fauna; thorns, pitcher plants... To think any other sentient beings would be peaceful is laughable. The only data we have is from this planet, and it doesn't bode well.