kEiThZ
Superstar
I don't think SpaceX would have happened without him, and SpaceX is a significant contribution.
SpaceX? No. Private/commercial space? Yes.
Going all the way back to PayPal mafia days he's always been a bullshitter who was really good at jumping on bandwagons just before they took off. Now that he's reaching the limits of this strategy, his actual abilities are becoming more obvious.