Citing anecdotal evidence is a subset of biased sampling. Selecting isolated cases is an example of biased sampling. All are problems in reasoning with statistics.

"There's just too much overlap between characteristics and behavior of men an women for these distinctions to be useful."

I find the truth of the statement to be self-evident. I certainly believe it and live by it.

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“Expectation strolls through the spacious fields of Time towards Opportunity.” Umberto Eco