Yes, correct. It is in fact impossible to prove something doesn't exist.
What you can do is limiting yourself not to believe in it.
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And some people would say its not possible to prove other things to exist either, but i disagree, because then it becomes only a matter of how easy that thing is to be observed by the average person (or everyone, the point ends up being the same).
Last edited by Sidvicious; Nov 11, 2012 at 10:54 PM.
Reason: <24 hour edit/bump