🧒 Explain like I'm 5
Imagine sending letters through a mail service. HTTP/1.1 is like sending one letter at a time, HTTP/2 is like sending many letters in one big envelope, and HTTP/3 is like using a super-fast courier that can deliver many letters at once without waiting for each one to finish.
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Senior-level deep dive: internals, pitfalls, and a self-interview ladder.
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