Regret

In decision theory, on making decisions under uncertainty—should information about the best course of action arrive after taking a fixed decision—the human emotional response of regret is often experienced, and can be measured as the value of difference between a made decision and the optimal decision.

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White House orders NIH to research trans 'regret' and 'detransition'

Exclusive: Trump White House directs NIH to study ‘regret’ after transgender people transition. After cancelling nearly all NIH projects studying transgender health, Trump’s team instructs the US biomedical agency to study negative consequences of transitioning.

Married people who cheat don't often regret it

New study reports 1 in 5 adults don't want children, and they don't regret it later

We Regret the Fossil Error. It Wasn’t the First.

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