…and likely has better compatibility with more Windows games, which are most games.
Microsoft has the existing expertise and access to source to build a very effective and basically seamless compatibility layer, akin to how 32-bit apps run on x64 windows using WoW64 (Windows on Windows 64). I guess the real question is if it will be running real windows with an Xbox compatibility layer or a version of the Xbox modified windows with a regular windows compatibility layer.








Sure, but is the full human brain the minimum set necessary?
Sentience/sapience is probably an emergent property of a set of neurons needing to coordinate, plan, predict the future and oneself in relation to it.
I suspect that AI is capable of sentience with sufficient complexity and training, but it’s not there yet. I also suspect we’ll be well past the point where it is there before we realize it is, but not until we make some kind of fundamental change in how we do it - we know human level intelligence is possible in the volume and power consumption of, well, a brain so we’re orders of magnitude off of efficiency limits.