Hanson doesn't think (2) and (3) follow because of the possibility of panspermia. It's possible that our galaxy is the only one in a billion light years that h

Hanson doesn't think (2) and (3) follow because of the possibility of panspermia. It's possible that our galaxy is the only one in a billion light years that has given rise to life, but there could, because of panspermia, skill be a high probability that a planet in our galaxy outside our solar system has life. See this podcast Hanson did with me: https://soundcloud.com/user-519115521 https://soundcloud.com/user-519115521