I don't understand why people are so quick to dismiss SpaceX's ambitions as unrealistic. They were the first to achieve re-usability of the first stage of an orbital class rocket, the first to prove out supersonic retro-propulsion and the first private company to re-fly a spacecraft (the Dragon Capsule). Given that, it seems like they should be given the benefit of the doubt when they say they are going to do somethi…
It's the colonizing Mars part Getting into Mars is solvable technological problem. Colonizing Mars is more economical and sociological problem than technological problem. Everyday living in high-tech place where everything is safety critical (like in a nuclear submarine or ISS) is extremely expensive. Productivity would have to be beyond everything that has ever existed for that becoming possibility. If Elon Musk can…
This is so very true. We can do it for Science, and for fun, but not much else.