Agriculture is work, work, work. Much like being in a factory constantly occupied by assembly work. Or white collar work pushing paper. Sharing a monotony that crowds out the creative process. Unlike in hunting, lying patiently in wait for prey. Or even herding. Plenty of long pockets of time in thoughts, empty or creative.
Perhaps this is why we hardly get 9-5 folks here. They are always in the matrix. Programmed and sticking with the programming. Stuck with Google and the curated ideas fed its servers. They are without the consciousness that allows them to go beyond the artificial intellectual walls set by their overlords.