Craig Federighi, in an interview with Ars Technica, speaking about Windows on Apple Silicon Macs:
We have the core technologies for them to do that, to run their ARM version of Windows, which in turn of course supports x86 user mode applications. But that’s a decision Microsoft has to make, to bring to license that technology for users to run on these Macs. But the Macs are certainly very capable of it.
The whole interview is great and well worth a read.