I’ll believe it when I see it. LeBron is like Jason Voorhees, except he’s more successful at what he does.
I wouldn't be shocked at all. He may be very fit and durable physically, but at at the end of the day father time will always catch up. For reference lets look at two other guys who were abnormally fit and durable physically - Karl Malone and Kevin Garnett.
In their first 10 seasons:
* Lebron played in 765 of 820 possible games (93.29%)
* Garnett played in 775 of 788 possible games (98.35%)
* Malone played in 816 of 820 possible games (99.51%)
So during their primes Garnett and Malone were both measurably more durable then even Lebron was.
Now lets look at their career miles (combined regular season and playoffs):
* Karl Malone retired with a total of 1,669 games and 62,759 minutes
* Kevin Garnett retired with a total of 1,605 games and 55,701 minutes
* Lebron has so far played 1,568 games and 60,810 minutes
The average of Malone and KG gives you 1,637 games and 59,230 minutes. Lebron is right there. Considering Malone and KG were even more durable then Lebron in their primes, it's hard to imagine Lebron has much left in him.