How many seasons before Zion Williamson blows his knees out?

I'm doing some rounding off here. Williamson is basically a 300 pound teenager, who plays a sport where you run and jump often.

It's pretty obvious that at some point in his career, he'll blow his knees out especially with the style of play he has. People like Zion peak early, he will be a better player now then he will at 28 if he's still around.

[B]How many seasons do you think it takes before the wear and tear on his joints wear him down?[/B]

This is season 2 for him, i say about season 5 or 6. Then he'll probably get traded because somebody will think they can teach him a jump shot and get something out of him, then he's out of the NBA like Andrew Bynum.