It's really a perfect storm. It's Curry raising to his greatness, as well as being on the perfect team for his style of play. His teammates are good enough from 3, that you can't confidently cheat off them (especially Klay who can get Curry-like hot), but Curry is so damn good that he demands a lot of attention from the D. The Warriors also have other ball handlers so Curry doesn't have to being the ball up all the time. If Curry can keep this up, which I think he can, the Warriors are going to be tough as hell to beat this year.