Yeah, all civilization needs to survive is about another 20 billion more, 10 billion of them on Mars and 10 billion more here to lead the life worth living. I

Yeah, all civilization needs to survive is about another 20 billion more, 10 billion of them on Mars and 10 billion more here to lead the life worth living. I thought any supply/demand believer would recognize we have more supply than ever, and the marginal need for any is less than ever before.