That might be true, but humans have had granaries to store grains and whatever else they can gather, for more than ten thousand years. Whatever the effort was,

That might be true, but humans have had granaries to store grains and whatever else they can gather, for more than ten thousand years. Whatever the effort was, we know people were gathering grains like corn. You can visit granaries all over the American west. They’re in South America and the Middle East as well, along with some evidence that manual cultivation was taking place ten thousand years ago https://www.researchgate.net/publication/26314333_Evidence_for_food_storage_and_predomestication_granaries_11000_years_ago_in_the_Jordan_Valley https://www.researchgate.net/publication/26314333_Evidence_f...