Opportunity to Tune

I came across an interesting thought in an Ann Althouse post today. The context is about a crazy prank, but that doesn't matter too much:

One girl knew he was a fake. You see her at about 3:00. I think it's not a mere coincidence that the young woman is strikingly beautiful. Well-tuned bullshit detector.

"Not a mere coincidence." Althouse isn't quite saying that all strikingly beautiful women have well-tuned BS-detectors. But you can see where they might have extra opportunity to tune that instrument.

Competitive males in pursuit of a mate
have sometimes been known to generate
BS
in excess.