IIRC, Longsoon is a modified MIPS chip with extensions designed to allow running x86 code via qemu very efficiently (relatively speaking, at least). Since Apple

IIRC, Longsoon is a modified MIPS chip with extensions designed to allow running x86 code via qemu very efficiently (relatively speaking, at least). Since Apple designs their own cores, they could attempt doing something similar with ARM. Apple controls both the hardware and the operating system, so they could build such an emulation layer into the OS. I have no idea how crazy this idea is in reality, but in my imagination it could be done.