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#170 - icanflyy has deleted their comment [-]
User avatar #185 to #170 - ninjasquirle (01/26/2013) [-]
Like gravity, lets test it. Go jump off a bridge an see if you fly up.
#183 to #170 - anonymous (01/26/2013) [-]
The word "theory" refers specifically to something that has been peer-reviewed and validated with sufficient concrete evidence for it to be safely considered an absolute fact.
An educated guess (and the word "educated" is important here) that has not undergone such confirmation is a hypothesis, not a theory, and such guesses are so regarded by the scientific community.
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