@terra you must be quite smart. Some stuff was quite surprising for me, like figuring out that key load factor may not be concurrent users to name one.
What I find ridiculous is people making huge kubernetes clusters to deal with scale and throwing cash at Amazon.
Aside from twitter (rip) and probably mastodon (how does it even work without collapsing _all the time_ being a ruby app), a glorious example was early whatsapp. One FreeBSD server, patched to remove socket limits, erlang, 3M concurrent connections. ❤️
Just computers? Sure! Impressive? Yes. Different from most just-computer kind of activities? You tell me