That last point is the key point: "some developers will take advantage of that 6 teraflops in different ways". Microsoft won't force developers to use the extra Scorpio processing power to hit 4K; they're free to use it how they want. That's great. But whereas Microsoft sees Scorpio as the 4K machine, a developer may simply see it as 'more power' for a native 1080p experience, and that's where this idea of Xbox One and Scorpio playing the same games becomes murky. How can they be the same games - or are they the same in the way that Xbox 360 and Xbox One cross-generation games were?