An ocean on Mars. An Earth-like planet light years away. The evidence is mounting, but are astronomers ready to say we're not alone?
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An ocean on Mars. An Earth-like planet light years away. The evidence is mounting, but are astronomers ready to say we're not alone?
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To think we're the only life that exists when we're just one planet in one solar system in one galaxie is ridiculous.
There's other life out there somewhere. We just haven't found it yet.
Or they're watching us act like idiots and have decided not to interact with us. :wink:
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Originally Posted by Pagan
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I think it may be light speed travel is an impossibility. That would be a weird one wouldn't it, that there may be life throughout the universe but that life has no way to interact.
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Originally Posted by Sponge
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Even if light speed travel was possible, the next closest star in this galaxy is 6 light years away. Our galaxy alone, in diameter, is over 100,000 light years across. So really, the only conceivable way to travel would be through wormholes.
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Originally Posted by Megatron
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Unless of course there are methods of travel we haven't conceived of.
Exactly.
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Originally Posted by Sponge
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Hard for alot of people to accept, but we may not be the brightest bulbs in the universe's Xmas tree, ya know? :wink:
I've always had a lot of difficulty with the concept that we are consistently on the leading edge of science.
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Originally Posted by Pagan
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At one time, the best scientists in the world believed the earth was flat (not saying it isn't by the way). Early last century, someone claimed to have proved scientifically that it was impossible for a human to run a mile in under 4 minutes. Then someone did it. There are many more examples, bumblebees are aeronomic impossibilities etc.
The point is for me at least, that it's a lot safer to believe you don't know something than it is to believe you do.
Oh I don't discount that at all, but there is still a likelyhood that that kind of travel is impossible. That would be the weirdest thing if we know there's life elsewhere but have no way to interact.
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Originally Posted by Pagan
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The PRIMARY difference between General Relativity (and thus all deterministic theories in science) and Quantum Mechanics is that all deterministic theories in science have to abide by the rule that nothing can travel faster than the speed of light.
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Originally Posted by Megatron
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In Quantum Mechanics however, instantaneous information transfer is possible. For example, quantum entanglement allows one to show that as soon as one of two entangled particles is observed, the other instantaneously has a certain property.
Specifically, suppose you have one particle that is observed as spin-up at time t=1. At THAT moment, another particle entangled with it will have spin-down (at time t=1), NO MATTER where it is in the universe.
And quantum mechanics is the single most accurate theory in science, so it's actually likely that information can be transferred instantaneously from one part of the universe to another. What isn't likely is that something made of matter could actually travel faster than the speed of light.
Complicated, yes, but it's at the heart of the present conflict in physics (dating 70 years) in trying to unify QM and GR.
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