Originally posted by AThousandYoung
Again with the "you don't KNOW" stuff. You don't KNOW that God didn't create us all two second ago either. You don't KNOW that cells aren't really illusions that the tiny skin-elves project into our microscopes. You don't KNOW that there is life at all besides yourself.
And no, I don't know there isn't something else out there that replicates it ...[text shortened]... her to debate? It's all faith, right Uzu? Thus we can dismiss logic, fact and reason.
I think UzumakiAi had a very good point.
1. We know of only one life form.
2. We have not yet found any convincing evidence that life does not exist on other planets in the solar system. Only the moon has been studied to a detail that would allow us to reasonably assume that it doesn't harbor biological life.
3. There are billions of stars in the galaxy and billions of galaxies. We know that there are probably planets around a high proportion of those stars.
4. We cannot see any of those planets directly and hence cannot really make any reasonable conclusion about the possibility of life on them. Keep in mind that even though we have sent spacecraft to mars we haven't yet ruled out the possibility of life there - how much less do we know about a planet we can only detect by the wobble of its sun?
In other words, the only reasons why we should claim that non-biological life is not possible are:
1. We cant imagine it - ie we have not been able to identify suitable complex chemical reactions /compounds.
2. We haven't observed it in our tiny tiny corner of the universe.
Of course the main reason to rule out non-biological life is because we have defined life as biological - but that tells us nothing about complex self-replicating creatures.