Nah. Gravity is a real drag. The asteroid belts have it all for almost zero g's, almost like someone already dug it out of the ground and threw it into space. A

Nah. Gravity is a real drag. The asteroid belts have it all for almost zero g's, almost like someone already dug it out of the ground and threw it into space. And robots can just tug those around to your nearest habitat/spaceport/planet.