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ManusJustus said:
sguy78 said:

So by your logic, you absolutely know there is no way there is any life on other planets because it can't be seen or proven. Just because you can't see something, or prove it exists, doesn't mean it does not.

You can use logic and science to make statement about life on other planets.  You could say, even though I cannot see life on another planet, it may be possible that life on other planets exist (and draw from knowledge of chemistry, physics, biology, etc.).

You cannot use logic and science to make a statement about God, unicorns, fairies, ghosts, and such phenomona.  Humans have ideas of such things, but where do you draw the line on what is supernaturally possible (God) and what is impossible (Leprachauns).  I make a blanket statement about all such things, but others make up some criteria they use to judge them.

There are things beyond our comprehension, and to state it does not exist because you cannot prove it would be false. The world was flat 500 years ago, wasn't it?