[deaddodo]

> Do they have an answer to rosetta so the transition can be mostly seamless (for everyone except developers if the M series is any indication...).

Microsoft had an AoT x86->ARM (and now, amd64->aarch64) binary translation layer before Apple's Rosetta had that capability (at least, publicly).

[jacooper]

Yes but it's still terrible with a much bigger performance loss than rosseta, partially because the M chips have some tricks for better emulation.

[deaddodo]

The performance is actually much better than most people from that skillset originally expected, and it generally gets better performance from arbitrary code paths/machine logic than Rosetta does.

Rosetta outperforms it because of hardware assistance, not because Microsoft's implementation is bad (let alone "terrible").