Absence of evidence does not mean evidence of absence.
Well of course it does. What it does
not mean is
proof of absence. That's because there are levels of evidence. Finding the fingerprints of someone at the scene of a crime is evidence that they were present, but it's not proof. Perhaps there's some other way to account for the fingerprints being there besides the person being there. But the point is that the presence of fingerprints does not need to definitively prove that the person was there to be evidence that they were there.
Similarly, the absence of evidence is evidence that someone or something is absent. There may be an alternative explanation for the absence of evidence that would account for the someone or something being there without leaving evidence, but that does not mean that the absence of evidence is not evidence of absence.
Ridicule is the only weapon which can be used against unintelligible propositions. -- Thomas Jefferson
We see monsters where science shows us windmills. -- Phat
It has always struck me as odd that fundies devote so much time and effort into trying to find a naturalistic explanation for their mythical flood, while looking for magical explanations for things that actually happened. -- Dr. Adequate
Howling about evidence is a conversation stopper, and it never stops to think if the claim could possibly be true -- foreveryoung