Now, a key question is, is why did agriculture emerge right then? Well, one theory is, is well, it seems to be only, and I put only, I'll say only in quotes, only a few thousand years after the end of the Ice Age, maybe you had positive climate change, at least from a human point of view, that allowed land to be, to support agriculture. That seems like a reasonable theory. Although you might say, well, we've had other periods where we didn't have an Ice Age. How can we see no evidence of agriculture then? And one counterargument or explanation I've heard for that is anatomically modern humans started to emerge around 200,000 years ago. But that doesn't mean that their, the way they thought or that their brains were the same as modern humans.