Reverse Engineering Intellectual Humility From Fruit Selection

Choosing oranges is easy. Heavy = good, light = bad. Heavy is juicy. Light is dry. Water weighs more than dry pulp. Duh! Yet I’ve never seen anyone perform this check. They poke, inspect, admire color, avoid blemishes, compare shapes. Even in Portugal, where oranges are everywhere, I watch shoppers deplete the various bins evenly, even if one contains noticeably heavier fruit. How can anything so obvious remain so utterly invisible? Even stranger: it took me six decades to see it, myself. We should be trained by now. We choose heavy oranges and are sensually REWARDED. We choose light ones and are PUNISHED. Even worms can be trained. Why not us? The orange trick is like a spooky invitation from an invisible dimension to consider what else we're missing. It feels like we've nearly filled in the map of knowledge, so at this mature stage we are simply adding minor details to First Principles which feel like solid bedrock. But what if the "unknown unknowns" are far, far more numerous than…