There's this kid named John Mora, an elite like top of the food chain pro pool player, hurts his shoulder, can't play right-handed anymore, learns how to play left-handed and becomes world-class left-handed. Wow. Learned as a professional when he hurt his arm that he had to start playing left-handed, started playing left-handed and started winning world-class events as a lefty, beating world-class top of the food chain pool players who've been playing right-handed their whole life. And he's been playing lefty for like two years.