18 ms·
David Deutsch shatters the myth of spaceship earth. https://www.youtube.com/watch?v=6R6e4xNoarg https://www.youtube.com/watch?v=6R6e4xNoarg
by jtanner 6y ago
David Deutsch shatters the myth of spaceship earth.
https://www.youtube.com/watch?v=6R6e4xNoarg https://www.youtube.com/watch?v=6R6e4xNoarg