foolish

With this, the king finally understood that his queen was the victim of an ugly trick— one he’d been foolish enough to fall for.

Or by some odd impulse that we don’t really understand and so can’t resist, we do something foolish and contrary to our normal values which brings on guilt and shame.

And we could imagine doing longevity gene edits in human beings, perhaps not in the next five years but I think it would be foolish to bet against it happening in the next 20 years, for example.