How did humans first learn to farm instead of hunt and gather?

For most of human history, nobody owned a single radish. People got their dinner by following it — chasing animals, picking berries, digging up roots, always on the move. So how did our ancestors go from "let's wander after lunch" to "let's grow lunch in the backyard"? It wasn't one clever inventor. It was thousands of years of paying attention.
Hunter-gatherers were not clueless about plants. They were walking encyclopedias. They knew which seeds were safe, which ripened when, and exactly where the good patches grew. So every autumn they'd circle back to the same wild wheat and barley, the same fat stands of grain, like regulars returning to a favorite restaurant.
