Miyawaki’s method involves planting hundreds of seedlings of various tree species at random. Only species that are native to the region are planted to avoid disturbing the existing ecosystem. The trees then undergo natural selection, so that only the hardiest plants survive. Meanwhile, their close proximity promotes mutually beneficial relationships between them. The result? A robust, diverse forest that requires no maintenance after two years and grows 10 times faster than the average forest. At such a rate, a forest planted using Miyawaki’s method should show 100 years’ worth of growth in a decade.