Holy crap, Joyrock. How hard is it for you to understand the simple concept of burden of proof? It is up to the one who makes the claim to provide support for it.
http://rationalwiki.org/wiki/Burden_of_proof
"Burden of proof" is the obligation that somebody presenting a new or remarkable idea has to provide evidence to support it. In a scientific context evidence is experimental or empirical data (although in some branches, well thought out mathematics may suffice). Once some evidence has been presented, it is up to the opposing "side" to disprove the evidence presented or explain why it may not be adequate.
(Ab)use
Often, someone will present a new idea and say that it must be accepted because it cannot be disproved. This is insufficient because without evidence there is no reason to accept an idea, even if there is no contrary evidence
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snowpork
http://media.tumblr.com/tumblr_lufaimzD0Z1qguxfm.gif