In particular I was bothered by the author's separation of scoping and closures. For example, if you look at what Objective-C has in terms of closures, and what

In particular I was bothered by the author's separation of scoping and closures. For example, if you look at what Objective-C has in terms of closures, and what JS has, then you're practically looking at completely different animals. But if you just say "closures ✓", "perfect lexical scoping ✗", you completely miss that point.