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Thread: Why does Stephen Hawking so strongly believe in E.T?

  1. #1 Why does Stephen Hawking so strongly believe in E.T? 
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    We Humans dont even know about the solr system but mr hawking is trying to be accurate in his thoery of aliens.
    Why so??


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    Life-Size Nanoputian Flick Montana's Avatar
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    I'm not sure specifically what you're referring to, but given what we know about the requirements needed for life to form, it is possible to infer some biological outcomes for alien species. We have only speculations, though, not theories.


    "Sometimes I think the surest sign that intelligent life exists elsewhere in the universe is that none of it has tried to contact us." -Calvin
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    The guy is 72 years old now, and has a debilitating illness. I think he's probably slipping. He has no particular expertise in the field of alien life anyway, so why worry what he has to say?
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    Forum Bachelors Degree GoldenRatio's Avatar
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    I see it as highly unlikely there is not ET in the cosmos. The universe is vast.

    Now, will we ever be able to have confirmed proof of ET, through communication? Hard to say, a possibility. 2way communication will be very difficult. Even if a planet was 20LY away, that means a 40yr round trip. Humans would at best be able to receive & transmit 2 messages in their lifetime before someone else takes over the com. That is a long wait for a love letter. Thats only 20LY, nevermind the observable universe is 13 billion LY across. If ET resides on the far side, they wont even get our message before our sun swallows earth.

    face to face contact I see as an impossibility.

    ET is out there, will we ever meet? no. Will we ever get to atleast say hello? possible, going to depend mostly on their distance & technology level compared to ours.

    It will also depend on how much they want to be found, here on earth we are very actively scanning the heavens for a voice. However, we have made very few genuine attempts to actually pick up the phone & broadcast our presence to the universe that we exist. Something I believe we should be more active in doing.
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    Genius Duck Moderator Dywyddyr's Avatar
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    Quote Originally Posted by Monkey.D.Luffy View Post
    We Humans dont even know about the solr system but mr hawking is trying to be accurate in his thoery of aliens.
    Why so??
    Please provide a link to his supposed "theory of aliens".
    What he has stated is that it is ""perfectly rational" to assume intelligent life exists elsewhere" - which isn't really in dispute.
    He's also stated that "aliens might simply raid Earth for resources, then move on" and "[i]f aliens visit us, the outcome would be much as when Columbus landed in America, which didn't turn out well for the Native Americans".
    Again, rational.
    Further he also conceded that "most life elsewhere in the universe is likely to consist of simple microbes".
    Again, nothing unusual.
    (All quotes taken from here).

    In short Hawking has done nothing more than express an opinion (one which happens to be rather uncontroversial) and given possible consequences.
    It's neither a theory (and was not expressed as such) nor was he "trying to be accurate 1".

    1 Beyond pointing out one possible, logical conclusion.
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    Quote Originally Posted by Dywyddyr View Post
    He's also stated that "aliens might simply raid Earth for resources, then move on" and "[i]f aliens visit us, the outcome would be much as when Columbus landed in America, which didn't turn out well for the Native Americans".
    This is true, if aleins have mastered FTL technology. Something I doubt is possible, but if it is...A fair conclusion

    However, I doubt they would come to "raid Earth for resources" Honestly, the only resource Earth contains you cannot find on another planet is a labor force or food. Aleins would not come to earth for say fuel, I mean they could mine the moon & gather all the helium 3 they want without even having to worry about any type of resistance force trying to hold up progress.

    Any natural resource would be available on a vast swatch of planets that would not contain life, thus the only reason to visit earth would be life as that is the only resource that might be somewhat rare & unique. The only way to harvest life would be for food or labor, it would not serve much other purpose to alien races (perhaps pets?)
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    Genius Duck Moderator Dywyddyr's Avatar
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    Yep.
    I must admit that particular attitude rather stumps me.
    What could aliens get from here that would surely be found much closer to home?

    If you've got FTL that implies, to me, that you have huge power resources available.
    And that would lead to all sorts of possibilities - maybe even "manufacturing" raw materials/ elements/ compounds without even moving out of the home system.
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    Aliens with FTL would probably have some pretty cool robots for the labor thing. Pets or sex tourism or biological expeditions or food carts or microbrew might all be motivators for E.T. visitation however.
    I was some of the mud that got to sit up and look around.
    Lucky me. Lucky mud.
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    They might just need "space" Perhaps their homeworld is facing overcrowding & unable to find suitable planet for living, thus taking ours. Which is why I strongly suggest every earthling should do their part to trash this planet so it will be inhospitable to alien life.

    edit:

    There is also a possibility alien would not need FTL, due to perhaps an abnormally long life span (extremely doubtful) stasis chambers, or robotic organism. All three unlikely, but then again so is FTL.
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  11. #10  
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    Quote Originally Posted by Dywyddyr View Post
    Yep.
    I must admit that particular attitude rather stumps me. What could aliens get from here that would surely be found much closer to home?
    Earth-grown watermelons! When the Galactic Empire realizes how delicious they are, we're doomed. DOOMED! I tells ya!
    And what does the Lord require of you but to love justice, to be merciful and to walk humbly with Him?
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    Quote Originally Posted by GoldenRatio View Post
    They might just need "space" Perhaps their homeworld is facing overcrowding & unable to find suitable planet for living, thus taking ours.
    If you've got sufficient power to ship "excess" population at FTL speeds (or, in fact ANY speed) fast enough to offset birth rates then I'd suppose that you've got the power to effect much simpler solutions. Build a Dyson Sphere?
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    Quote Originally Posted by Dywyddyr View Post
    Quote Originally Posted by GoldenRatio View Post
    They might just need "space" Perhaps their homeworld is facing overcrowding & unable to find suitable planet for living, thus taking ours.
    If you've got sufficient power to ship "excess" population at FTL speeds (or, in fact ANY speed) fast enough to offset birth rates then I'd suppose that you've got the power to effect much simpler solutions. Build a Dyson Sphere?
    Agreed, never said it was the most practical reason for ET to visit, just a possible reason. Though do not see dyson sphere as the best solution. Seems like a huge undertaking, not to mention resource drain to build one.

    retro-fitting sister planets would be a more viable solution. For instance, if earth reached such a technological level. Retrofitting the moon & mars for life seems like it would be simpler than a dyson sphere, not to mention not breaking any of those pesky laws of physics. Possibly even fitting some other places like some of jupiter/saturn moons. Difficult, but not necessarily impossible.

    edit: another possible reason is they truly have evolved beyond the need for war/killing/ect & truly do just want knowledge & greeting in friendship.
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    Quote Originally Posted by GoldenRatio View Post
    Quote Originally Posted by Dywyddyr View Post
    Quote Originally Posted by GoldenRatio View Post
    They might just need "space" Perhaps their homeworld is facing overcrowding & unable to find suitable planet for living, thus taking ours.
    If you've got sufficient power to ship "excess" population at FTL speeds (or, in fact ANY speed) fast enough to offset birth rates then I'd suppose that you've got the power to effect much simpler solutions. Build a Dyson Sphere?
    Agreed, never said it was the most practical reason for ET to visit, just a possible reason. Though do not see dyson sphere as the best solution. Seems like a huge undertaking, not to mention resource drain to build one.

    retro-fitting sister planets would be a more viable solution. For instance, if earth reached such a technological level. Retrofitting the moon & mars for life seems like it would be simpler than a dyson sphere, not to mention not breaking any of those pesky laws of physics. Possibly even fitting some other places like some of jupiter/saturn moons. Difficult, but not necessarily impossible.

    edit: another possible reason is they truly have evolved beyond the need for war/killing/ect & truly do just want knowledge & greeting in friendship.
    Do you mean terra-forimng?
    And what does the Lord require of you but to love justice, to be merciful and to walk humbly with Him?
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    Quote Originally Posted by 甘肃人 View Post
    Do you mean terra-forimng?
    Terra forming implies making other worlds "earth like" aliens might not want a planet like ours but one like their own.

    Though if that is the term you wish to use, then yes.

    A more accurate term however would be "planetary engineering"
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  16. #15  
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    There is a presumption that faster-than-light travel is a prerequisite for interstellar travel by extra-terrestrial intelligence. That is very limited thinking. Here are some other possibilities:

    1. Generation ships.
    2. ETs have lifespans order of magnitude longer than ours, so that a century long transit is like Darwin's Beagle voyage.
    3. Discovery of some form of "warp drive" using as yet unenvisaged physics.
    4. Hibernation.
    5. Cryogenically frozen organisms that are activated on arrival in the new system and raised by robots.
    5. Robots are the ET.

    The resources they may plunder us for could include the equivalent of a field study of "How to Screw up a Biosphere".
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    Quote Originally Posted by John Galt View Post
    1. Generation ships.
    I do not see generation ship as a possibility. If we took our current fastest spaceship (voyager 1) as a base model. It has taken it 36yrs to cover 16 light hours distance. At these speeds, it would take earthlings approximately 70k years to reach even our closest neighboring star system at 4 light years away. That is a long trip for anyone to sign up for.

    Consider where humans were in history 70,000 years ago.
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    Quote Originally Posted by Dywyddyr View Post
    Yep.
    I must admit that particular attitude rather stumps me.
    What could aliens get from here that would surely be found much closer to home?

    If you've got FTL that implies, to me, that you have huge power resources available.
    And that would lead to all sorts of possibilities - maybe even "manufacturing" raw materials/ elements/ compounds without even moving out of the home system.
    Also, I find it hard to believe that FTL could ever get to the point, (if it is possible at all,) where using it to bring enough manpower and machines to Earth in order to harvest her resources would be a net gain in energy produced.
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  19. #18  
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    Quote Originally Posted by GoldenRatio View Post
    I do not see generation ship as a possibility. If we took our current fastest spaceship (voyager 1) as a base model. It has taken it 36yrs to cover 16 light hours distance. At these speeds, it would take earthlings approximately 70k years to reach even our closest neighboring star system at 4 light years away. That is a long trip for anyone to sign up for.
    If we took the speed of coracles as a base model, then travelling to the US for a one day business meeting would be crazy.
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  20. #19  
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    Quote Originally Posted by John Galt View Post
    Quote Originally Posted by GoldenRatio View Post
    I do not see generation ship as a possibility. If we took our current fastest spaceship (voyager 1) as a base model. It has taken it 36yrs to cover 16 light hours distance. At these speeds, it would take earthlings approximately 70k years to reach even our closest neighboring star system at 4 light years away. That is a long trip for anyone to sign up for.
    If we took the speed of coracles as a base model, then travelling to the US for a one day business meeting would be crazy.
    Touche good sir.
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