> mining asteroids, I agree about the living in space and colonizing mars which are mostly pipe dreams (that I'm admittedly optimistic about as a spaceflight e

> mining asteroids, I agree about the living in space and colonizing mars which are mostly pipe dreams (that I'm admittedly optimistic about as a spaceflight enthusiast), but I think mining asteroids is a feasible proposition. The material is there, and in-situ resource extraction and return has been demonstrated. It's really just a matter of scale-up and putting in the upfront investment.