I wonder why it's so hard to understand that a console can be a new generation while being compatible with the old one.
That's not the issue. XBOX One is compatible with (a lot of) XBOX 360 titles.
But. The XBOX 360 can't play dedicated XBOX One titles (it lacks forward compatability).
The thing is: The XBOX One will be able to play every single (Non-VR) Scorpio title. So Scorpio will have - as far as we know - no (platform) exclusive games.
Now, let's talk about "definitions". What exactly defines a new console generation?
Is it "power"? No. It is not. Because we will never be able to agree on a "necessary improvement treshold / multiplicator" for that. Like: How much more TF does a new gen need? Do TF matter in the first place? And what about memory bandwidth? Or CPU generation?!
You, see, discussing about power is futile.
This is why quite a lot of people argue that dedicated games, and only those, are the only relevant distinctive factor between two generations.
Which is why so many here claim that Scorpio is "just" a beefed up XBOX One, no matter what MS puts in it. But all of those also said months ago that we consider Scorpio a "new gen" from the very second MS delivers exclusive games.