With all this yeast gathered in one place, the very earth would rise. Some who arrived were enemies. Arsonists burned the city’s greenbelt; the sappy pines blew up like Roman candles and a ghastly pall of smoke polluted Texas for miles downwind. But when those flames died, the new society moved onto the blackened acres and consumed them utterly. In the grinding hoppers of the biohackers, trees digested more easily when partially cooked. The ash contained vital minerals. A scorched and blackened forest was a natural phoenix nest for the world’s first genuine Greenhouse society.