text:  Oh, yeah. And there are a couple of key examples. So one is to really realize that until just kind of a blink of the eye, 10,000 years ago, when agriculture started coming in, all humans who have ever lived and all of our hominid ancestors for another couple million years before that, yet smart enough to make stone tools, all of them lived in bands of 40 to 50 people their entire lives. Small bands.