I don&#x27;t understand why Musk is so focused on a Mars Colony. Why go to all the effort of climbing out of one gravity well just to drop yourself down another?<p>It be a lot easier to mine asteroids and build colonies in Earth or solar orbit. And potentially hugely profitable if they choose a platinum-rich asteroid.<p>See further:
&#x27;The High Frontier: Human Colonies in Space&#x27; by Gerard K. O&#x27;Neill<p>&#x27;Mining the Sky&#x27; by John S. Lewis