On Friday, Elon Musk’s image loomed large over Times Square from the giant TV screen of the Nasdaq stock exchange, as tourists outside snapped selfies, SpaceX investors in T‑shirts grinned at their newfound fortunes and news cameras jostled for position. “If people had told me this was going to happen, I was like, ‘man you must be smoking some really good crack,’” Musk said in a video address celebrating SpaceX going public. “I gave SpaceX less than a 10% chance of succeeding at all.”…
