Well, to be fair, absence of evidence <i>is</i> evidence of absence. It&#x27;s certainly not <i>proof</i>, but it is evidence. Every observation you make that _does not_ show a phenomena occurring allows you to be more certain that the phenomena does not occur.<p><a href="http:&#x2F;&#x2F;lesswrong.com&#x2F;lw&#x2F;ih&#x2F;absence_of_evidence_is_evidence_of_absence&#x2F;" rel="nofollow">http:&#x2F;&#x2F;lesswrong.com&#x2F;lw&#x2F;ih&#x2F;absence_of_evidence_is_evidence_o...</a>
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