twesterm said:
Kasz216 said:
highwaystar101 said:
twesterm said:
highwaystar101 said:
twesterm said:
When asking this question, there are two possibities:
- The universe is infinitely big so that means there's an infinite chance that conditions for life exist and for that spark to happen. Taking that into account, even if that chance for the spark of life to happen is small, it's still likely to happen eventually.
- The universe is infinitely big and if we're the only life then something made us unique so that it cannot happen anywhere else.
When looking at those, #1 seems much more likely than #2.
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Our Universe is finite, not infinite. Unimaginably large I grant you, but still finite. Sorry.
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blah, whatever, poor choice of words. You know what I mean. :-p
Though I'm pretty sure space is infinite, it's just the extents of the space created by our big bang is finite. There's nothing that says there couldn't have been another big bang elsewhere that we just can't see.
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Oh yeah, of course there is more than just our Universe. I would imagine that our universe is one amongst an immeasurable amount of other Universes existing across a vast membrane. I don't think infinite space isn't something I would subscribe to though. 
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I was under the impression that it is currently believed there is nothing outside of our universe. That is space is expanding into literally non-existance.
That it would be impossible to expand into another universe simply due to the fact that everything around us is literally non-existance.
It seems far fetched as of yet to even suggest their are other universes as of yet. Afterall there is no way to currently measure this.
Talk of other universes isn't scientific. It's philosophical.
People talk of quantum mechanics being a reason there may be other universes... people also talk about quantum mechanics as being why people have "free will". Or really quantum mechanics would make it "random will" more then free.
Quantum Mechanics are currently a catch all we don't know enough about and are used for every random theory someone has.
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Why is it believed there is nothing outside our universe? If space has something to expand to, then there must be the possibility that there's something there.
Just like with what makes our planet unique, what made our big bang unique?
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Well, it's because the universe isn't really so much expanding as it is stretching... and even then, it isn't really stretching so much as it is doing things our minds can't really comprhend eaisly so we need to define it via terms like expanding and stretching. For example... galaxies aren't really moving through space... the space between galaxies is "stretching".
http://curious.astro.cornell.edu/question.php?number=274
Does a good job of explaining it.
If other universes did exist... it's not like another universe would "collide" into our own. It would be very different and much more confusing.
For example, if other universes exist.... they may actually overlap our universe we simply can't detect them. Imagine things like Heaven, Hell, and what people claim cause "paranormal activities" with ghosts.