>
>
> The only approximation that seems acceptable to me is one that (a) never
> has false negatives, and (b) provides a simple way for developers to
> receive notification on and fix false positives.
>

Basic sysadmin stuff.

To finish the thought, `done` and `WeakRefs` fail (a), and console-only
solutions fail (b) in production environments.

{ zen }
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> The only approximation that seems acceptable to me is one that (a) never
> has false negatives, and (b) provides a simple way for developers to
> receive notification on and fix false positives.
>

Basic sysadmin stuff.

To finish the thought, `done` and `WeakRefs` fail (a), and console-only
solutions fail (b) in production environments.