https://www.youtube.com/watch?v=dpMJeUAUfkE (Skip to 5:10. Wall Street Journal video via YouTube) Mixed martial arts superstar Ronda Rousey took down her opponent in 34 seconds in a fight heard ’round the world Aug. 1. The Wall Street Journal re-posted its May interview with Rousey this week in honor of her victory, and in it, she gives some insight into what might have become of her if she’d taken another path: WSJ sports columnist Jason Gay: So if, Beijing [summer 2008 Olympics], you had won gold — you would be doing what now? Rousey: I’d probably be a rescue swimmer for the Coast Guard.…