To me this is a “either you can do it, or you can’t” situation. And the only way to know if you can do it…is to do it.
It’s the same argument I have with NFL running backs carrying heavy loads. Either you can do it and do it well into your 30s (Walter Payton, John Riggins, Emmitt) or you can’t (Earl Campbell, Eddie George).
Lebron takes care of his body as well as anyone has ever, so maybe he’s an experiment and a class of One?