4. To build an Industrial Settlement On the Moon

Gregg Maryniak imagines that space is like a tabletop with holes in its surface. At the bottom of every sloped hole is a planet. In order to enter space from each planet you have to climb out of the gravity hole. Since the moon is just a dimple of a hole, its the easiest to climb out of. Building factories on the moon would be the cheapest and easiest approach. Moreover since the moons gravity well is weaker, its a prime location where we could eventually build a spaceport to launch people to Mars and beyond using energy from solar-power satellites (SPSs).