In the second half of your book, you talk about these extraordinary characters who have actually begun to change farming and change the soil. They're not very rich but on quite a small scale. The classic case is this remarkable man in tolhearst, or tolly, as everyone calls him. He he left school when he was 15. No qualifications, no money. But his experiments have now lasted 34 years. And astonishingly, throughout that whole period, he's added no fertilizer and no manure to his soil. Having cracked the tech, nice, his fertility has just risen and risen. And his productivity has risen and rises. It's the most extraordinary thing.