Re: The Sci-Fi solution
Actually that is not a bad idea, Teleportation is technically possible. If the human race had the ability to teleport matter on such a huge scale, we could make some great changed to this Solar System. You would need one heck of an energy source, thou.
My idea mentioned above, would involve huge tankers to ship the matter around. It would be a long, slow process, but if the majority of labor could be done by robots who don’t need much supervising, it would be pretty painless to humans. It wouldn’t cost the Earth much once it was set up and most of the material used came from off Earth.