If Intel has taught us anything about ISAs, it's that having a shitty one doesn't much hurt. If ARM has taught us anything about ISAs, it's that starting with

If Intel has taught us anything about ISAs, it's that having a shitty one doesn't much hurt. If ARM has taught us anything about ISAs, it's that starting with a nice one doesn't mean it won't end up a mess. (There exist 32-bit ARM implementations with precisely zero opcodes in common.)