🧒 Explain like I'm 5
Imagine you have a toy that sometimes doesn't work. First, you find out when it stops working. Then, you try to make it stop working again to see why. After guessing a few reasons, you check each one to fix the toy.
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Senior-level deep dive: internals, pitfalls, and a self-interview ladder.
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Answer out loud, get scored on correctness, depth, and clarity.
