🧒 Explain like I'm 5
Imagine you're building a sandcastle. Instead of making you wait until it's completely done, I first show you the outline of the castle (skeleton screen), then I add sand bucket by bucket (streaming), and I pretend the first bucket is already a tower (optimistic rendering). This way, you feel like the castle is ready much faster, even though it's still being built.
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Senior-level deep dive: internals, pitfalls, and a self-interview ladder.
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