I’m super not embarrassed to admit that I just learned:
ES6 arrow functions do not have their own `this`. They inherit `this` for free without having to do `.bind` or `self = this`. 
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uhhh... arrow functions definitely create a scope. they don't, however, have their own execution context (aka `this`).
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Sure, but not a function scope.
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and `prototype`
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Wait, what?
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Those, and `this`, are not special-cased or anything — it’s just that arrow functions don’t create a new function scope.