Great stream. Original quote is: there are 2 hard problems in CS: naming things, cache invalidation, and off-by-one errors. Most of the stream was about content caching though and not so much about the kind of caches the quote was talking about.https://twitter.com/cmuratori/status/1451268903003250688 …
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The second case is unsolvable, ergo the only correct statement would not be that it is "hard". It is in fact "impossible". The best you can do is a statistical guess.
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Maybe the originator of the quote didn't realize it was impossible? Managing these cache settings is something we do all the time in web development, so it certainly doesn't seem "impossible" even though, yes, it is at best a guess.
End of conversation
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