I really wonder how much of the hangup is that it's a miserable field for a successful billionaire to break into. The problems are political, regulatory, burea

I really wonder how much of the hangup is that it's a miserable field for a successful billionaire to break into. The problems are political, regulatory, bureaucratic, inscrutable, and you can't win solely on the back of being "cheaper" and "better". You have to both REALLY care, and be willing to wade through immense BS to make a profit comparable to selling smartphone apps.