Oh I know its not sustainable. Even Curry isn't this good from mid-range. If he can start hitting the 3 at even 32% I'd like him a lot more, I still hate the shots he's taking, just they're going in.
Once fatigue sets in (he's playing a ton of minutes) I expect the numbers to go down to his career average.
I think he can be a poor man's Kobe, which I'm fine with. We have him for his 27-32 years so he shouldn't drop off during his contract.