Napoleon, like Musk, was a genuine genius who won repeatedly by defying expectations. Success bred a sense of invincibility. The march on Moscow foll… - Robert Zubrin

The moon is a world of rough terrain, with an extent the size of Africa. Such a world cannot be adequately explored on foot, or by ground vehicles. To get around the moon in any serious way, we are going to have to be able to fly. The moon, of course, has no air, so airplanes are out of the question. But by taking advantage of its polar ice to produce hydrogen/ oxygen propellant, we will be able to fly all over the moon using rocket-powered ballistic flight vehicles.

Miners operating among the asteroids will be unable to produce most of their necessary supplies locally. There will thus be a need to import food and other necessary goods either from Earth or Mars.

Today it is about $12,000/year,