To a certain extent, some have more drive than others. Look what happened to Vince Carter. Got paid and didn't really care as much anymore. Lost his passion for the game.
my friend says its his dedication to his craft. he puts basketball first and takes pride in what he does. whereas you see others get fat and out of shape, Lin seems to focus on what is at hand
I bet we could come up with 10 reasons without duplicating any of those offered. This being one of them.
I think his understanding for spacing, court awareness, player positioning while in flow and angles are outstanding. I've only seen a few players that consistently get to the hole with good looks as often as he does.