You can say how it's design smell all you want, but do you have any reasons why? This is a JIT, optimizations like this can (and do) have some pretty big impac

You can say how it's design smell all you want, but do you have any reasons why? This is a JIT, optimizations like this can (and do) have some pretty big impacts on the speed of the execution without needing a long warmup which is extremely important for a language like javsacript. And in doing so it needs to balance battery usage, startup performance, "hot" performance, and a ton of other things. Its easy for you to stand back and say "that's dumb", but optimizations are often messy, and without them the language would run much slower. > That somehow falls short of being convincing that it's right. That's why I tried to provide other reasons why I think it's right...