The Giant Myth of Ephebophilia

Everybody believes in it, despite the total lack of evidence.
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Ephebophilia is simply not real. (Wikipedia cites Blanchard, who cites Krafft-Ebing, who doesn't mention ephebophilia at all. Wikipedia is wrong.)

Somehow the weird Greek name makes everyone think it is scientific and official, but if you take a few minutes to think it through you realize the whole concept is absurd.