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I’m curious to know what performance looks like. In the recesses of my memory is the belief that proxies are not good for performance but I have no idea if that’s well founded (or maybe once was but isn’t any more).

It’s a very smart idea though, I like it.

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It depends on count of variables and dependencies. The much worse problem with proxies is that they can be confused with raw values, for example, you can add a proxy into a Set, and then check for existence of a raw value. Or confuse raw value and proxy in dictionary's keys.

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