I'm 80/20 on Musk's Mars thing being a way to get great PR in certain circles at near-zero cost. His periodically erratic behavior is the only reason I allocate

I'm 80/20 on Musk's Mars thing being a way to get great PR in certain circles at near-zero cost. His periodically erratic behavior is the only reason I allocate the 20. Who else is seriously talking about space colonization and even kinda putting their money where their mouth is? Which money, conveniently, would have had to have been spent for much-lesser goals anyway... I'll be convinced he means what he says, on that front, when he starts spending serious cash on projects that have little purpose other than reaching and/or colonizing Mars. For now, I believe he wanted to own a rocket company, and wanted to have a stated mission that might make recruiting easier and buy him some goodwill points.