[hguant]

...no the surface lesson is that lazy heuristics produce habits that provide the illusion of certainty without any rigour backing up those beliefs; the outcome may correspond with reality but the process getting you there isn't rational or dependable, because it always produces the same output regardless of input.

The "deeper lesson" if there is such a thing here is that experts are people too, and just as fallible, only in ways that are generally invisible to everyone but another expert.