That's exactly his point/the area of cost saving - that they didn't actually need as many hashes as they had started with. The trick was in finding out how many hashes they could cull without degrading load balance.
Bang up article! As someone who doesn't get to do enough (almost any) calculus in my daily programming assignments, I thoroughly enjoyed reading about Kevin's dive into that derivation (linked in the supplemental article). All the people being negative here can swallow raisins
We can tell you didn't read the post because it is definitively NOT garbage. Very interesting write up by the Cloudflare team - the man literally did calculus to improve something. When's the last time any of us did Calculus to improve anything? Bang up job Kevin and everyone!!
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