Does Porsche have domain expertise in launching vehicles into orbit? Do you not think that the cross pollination between Musk's ground breaking companies won't give him a competitive edge against incumbents?

I don't think anyone realizes just how significant it is to have Silicon Valley know how in this industry where the visionary is an engineer and not a traditional CEO salesman.

It defies common sense that people question this so much. It's so obvious that Musk is disrupting all of these industries at once and breaking new ground daily.

I think, judging by the downvotes of my above comment that people are jealous or envious of Musk and they will always have a negative reaction to his success.