Musk&#x27;s road map is for SpaceX to make a profit <i>colonizing</i> Mars.  Starting within the next 10 years.  (Musk himself wants to be a colonist there.)<p>The value proposition is that for a half-million you get to move to Mars, and you can return free if you decide you don&#x27;t like it.  (You still spent the half-million though.)  So sell your house, move to Mars.