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Yeah. Like all those compilers and runtimes for the back-end languages we were already using before JavaScript ate everyone's brains, that served as the inspiration for all of this madness on the front-end side.

> But as we go there, maybe some more advanced things like the closure[1] compiler or prepack[2] would make it faster.

And then one could probably go even deeper in search of performance and instead of compiling JS to JS, compile it to C or even straight to native CPU assembly.

AOT compilation of js is probably not worthwhile.

Back end is about stability (= don't do fancy). So unless it increases performance like maybe prepack does, I don't see much point.