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Originally posted by yeti101
heres something to think about: if there has been civilizations to aquire interstellar travel why havnt they colonized the earth? theyve had a good 497 million years to do it before we evolved to homo-sapiens. But it hasnt happend.Lucky us!
[edit on 28-2-2007 by yeti101]
Originally posted by yeti101
i think the assumption comes from the fact the universe is 12 billion years old. its taken 5 billion years on earth to get intelligent life but it could very well happen much quicker by millions of years on other planets- depending on their conditions.
poeple then take the next logical step and say some are likely to be far more advanced than us.
I dont buy interstellar travel by any civilization so im a bit of an oddball here
heres something to think about: if there has been civilizations to aquire interstellar travel why havnt they colonized the earth? theyve had a good 497 million years to do it before we evolved to homo-sapiens. But it hasnt happend.Lucky us!
[edit on 28-2-2007 by yeti101]
they probably found better, more suitable planets than ours.
Originally posted by souls
because the universe is so vast, that life forms should be, or it would make sense that, they are at different levels of understanding. we are at a different level of understanding than dogs, and they are at a different level of understanding than fish.
What you're talking about is known as the Fermi paradox. Quite a lot has been written about this by some clever people, and it remains unresolved.
Originally posted by yeti101
they probably found better, more suitable planets than ours.
souls theres tons of valid theoretical answers you can give to my question and your is 1 of them. The fact remains colonization hasnt happened ..touche my friend touche!
but you never know maybe our planet is next on their list!
[edit on 28-2-2007 by yeti101]
Originally posted by disownedsky
Originally posted by souls
because the universe is so vast, that life forms should be, or it would make sense that, they are at different levels of understanding. we are at a different level of understanding than dogs, and they are at a different level of understanding than fish.
What you're talking about is known as the Fermi paradox. Quite a lot has been written about this by some clever people, and it remains unresolved.
Fermi realized that any civilization with a modest amount of rocket technology and an immodest amount of imperial incentive could rapidly colonize the entire Galaxy. Within ten million years, every star system could be brought under the wing of empire. Ten million years may sound long, but in fact it's quite short compared with the age of the Galaxy, which is roughly ten thousand million years. Colonization of the Milky Way should be a quick exercise.
So what Fermi immediately realized was that the aliens have had more than enough time to pepper the Galaxy with their presence. But looking around, he didn't see any clear indication that they're out and about. This prompted Fermi to ask what was (to him) an obvious question: "where is everybody?"
Originally posted by yeti101
souls , thats another good answer, maybe they just explore but dont colonize. but wouldnt they run out of space on their own planet and be forced to colonize?
Originally posted by souls
Originally posted by yeti101
souls , thats another good answer, maybe they just explore but dont colonize. but wouldnt they run out of space on their own planet and be forced to colonize?
Yeah, that makes sense, population overgrowth, but I would like to think that they colonize planets that are in there immediate region of space, you know home sickness, and just learn what they can from the ones they can't colonize, or are to far away to move an entire population.
5. maybe those who can travel through space decide limitless expansion isnt they way forward for their society
Originally posted by yeti101
souls well done another good answer, but think of this....
if intelligent life is so abundant it means theres been civilizations created hundreds of millions of years ago maybe even billions of years ago, even if they expanded at a really slow rate they would cover the galaxy in a 10-50 million years. Long before we arrived.
but again fermis paradox remains intact, it hasnt happened. I wonder why sometimes and can only conclude interstellar travel is not possible. I think ETs maybe colonize their own solar systems but thats it.
[edit on 28-2-2007 by yeti101]