Indeed this would be the fourth time they successfully switched architectures. They went from m68k, to PPC, to x86. Apple is in a pretty unique position in that

Indeed this would be the fourth time they successfully switched architectures. They went from m68k, to PPC, to x86. Apple is in a pretty unique position in that they make both their hardware and software ecosystem. It gives them a lot of flexibility that companies who just make generic Wintel systems lack.