folly

They will finally see their folly and go home.

Here was a strange but true fact: The closer you were to the market, the harder it was to perceive its folly.

Mr. Howard’s argument, which I find persuasive, is that Cowley’s stint as an ideologue was a short-term folly that does not fundamentally implicate his literary endeavors.

While she maintained some loyalty to your family during her lifetime, it would be folly to expect the same level of due diligence from her widower.

Where one analyst sees a legitimate AI-fueled rally, another sees familiar folly.