Is the Planet Earth Our Only Home?
In early 2015, I gave a couple of lectures at Carleton College in Minnesota. One was on our visions on human future in space. I talked about three visionaries—Tom Wolfe, Carl Sagan, and the Nolan brothers (Interstellar). The intelligent students were on board with Carl Sagan’s vision of wise and benevolent ETI (extraterrestrial intelligence) as a kind [...]