Sure, but it doesn't take as much to keep doing it as it does to figure it out the first time, and both are way beyond moose level.

Plus you don't have to be great at it. We sucked at figuring out why you can't just keep doing underground potato in the same place forever and our first few millenia of attempts to solve it were mostly just throwing random crap in there with potato.

You're really over estimating agriculture as a technology tree. It takes pretty much no thought to notice that the trash pile tends to grow the things you put in the trash pile, and from there it's experimentation on what in the trash pile of food makes more food (realistically medicinal herbs) grow.

Agriculture was developed at least a few thousand years before stationary settlement.

the funny thing behind agriculture, is that the vast majority of modern foods we eat are selectively bred over the entire course of agrarian history.

Most of these grown foods today, simply didn't exist.

THAT was the the true genius.