It's not just the players, it's the culture. Sometimes it's the people around them; the people who are looking after them - the money they're given. Some of the families give up their jobs and live off their sons. That would never have happened 10 years ago.
“There's never going to be a decathlon that you're going to have 10 events that your satisfied with. You're always, always going to be dissatisfied in something, and that always draws you back to try to retry that the next time you do a decathlon. It's like you go for the perfect 10.”