The Intellectual Mistake of Once-and-For-Allism

From a story on Marginal Revolution by Tyler Cowen headlined “The intellectual mistake of once-and-for-allism”:

One of the most common intellectual mistakes!

Do note however that it is an efficient mistake for many people to commit, and that is part of why it is so common.

“Once-and-for-allism” occurs when people decide that they wish to stop worrying about an issue at the margin. They might either dismiss the issue, or they might blow up its importance but regard the issue as hopeless and undeserving of further consideration. Either way, they seek to avoid the hovering sense of “I’ve still got to devote time and energy to figuring this out.” They prefer “I am now done with this issue, once and for all!” Thus the name of the syndrome.