Box of delight

There’s been a lot of talk about the Dunning-Kruger effect, the cognitive bias that makes people wildly overconfident, unable to know how ignorant they are because they don’t have the basic skills to grasp what competence means. Once popularized, the effect became weaponized. People made armchair diagnoses, gloated and pointed at the obliviously stupid. But if those finger-pointers could take the beam out of their own eye, they might see four fingers pointing back at them, or whatever folk wisdom to this effect you care to mash up.