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There is a huge gradient of use cases between "high level web frameworks" and "writing everything from scratch" and we've thought about the impact on users at every step of that gradient. But I'm not about to explain it to you, because you are being disingenuous and aggressive.

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And even for the user that only uses high level web frameworks, the moment that user needs to debug its program (which might have a bug in its executor), it needs to understand pinning.

I don't see any use case in which understanding pinning is not necessary.

There's miles between understanding pinning well enough to call `Box::pin` (a safe API) and understanding pinning well enough to call `Pin::get_mut_unchecked` (an unsafe API). When we talk about understanding pinning, we mean the latter.

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