 working together to deliberately make the planet as habitable as possible. And that was one of the things that kind of got him in trouble in the beginning and that he later retracted because he was giving life a bit too much agency, too much purpose. Over time, he and an American biologist named Lynn Margulis refined and developed the Gaia hypothesis together. Over time, they came to see it more as an emergent phenomenon that this system they called Gaia, this living entity,