 And, you know, it doesn't take any energy. You're just being smart, being in the right place at the right time. That's the first thing. And some early calculations about whether you could go to the moon or not, 1941, a great astronomer, Michael Campbell, showed that the initial launch rate would have to be a million, million tons. He was only off a factor of 300 million because he made all the wrong assumptions. Astronomers don't know anything about space travel. That's the first thing. The second thing is...