[TOGoS]

There is a secret technique, called content-addressing[1], which elegantly solves both of them at once.

A lot of people haven't caught on, and try to cache things using ambiguous names, hence the struggle to invalidate their caches when the meaning changes.

[1] This can be applied even if you don't know the content yet; you just have to unambiguously name the inputs to the function that produces it. You might not know what all the inputs are, and then you have to start adding stuff like "unknown-unknown-2025-07-03T16", but it'll still basically work.