There is a lot details to work out of course but Musk surely has thought about this more than you or me, with a brain that is optimized for this sort of thing.

There is a lot details to work out of course but Musk surely has thought about this more than you or me, with a brain that is optimized for this sort of thing. He has the clout to talk to the best people in the field, people to do computer simulations, and a record of success in very hard businesses. He is serious about this. Look at the open jobs list. More people trying and doing and less people just criticizing the better. My biggest concern would be Musk spreading too much of his focus away from SpaceX and having that venture flounder.