Ah ha! I mean, Duh!
Everyone I encounter has a certain base package of knowledge, right? People generally eat with a fork, wait their turn before speaking, can approximate their feelings in words. Only with a mature brain, apparently. Which has been simultaneously both an “Ah-ha!” moment and a “Duh!” moment. Humans are born unfinished; it’s something about the angle needed by a pelvis for walking upright being incompatible with the size of a head with a completed brain. I knew that already. But what I didn’t know was how the brain was unfinished. And now that I think about it, of course, it makes …