The problem is that the revenues from those licenses would be so much lower than the margins on those x86 CPUs to make it almost impossible for Intel to switch.

The problem is that the revenues from those licenses would be so much lower than the margins on those x86 CPUs to make it almost impossible for Intel to switch. Apple moving Macs to Arm has given better performance __and__ lower prices. I do think that Intel has executed badly on the ISA front too. Let’s not forget that x64 wasn’t an Intel design (how much did they spend on Itanium) and they’ve messed around with AVX-512 which just seems to eat die area and power. By contrast Arm managed to get its customers switched over to 64 bit seamlessly and has left most of their awkward legacy behind.