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    16 · Design problem · medium

    Design a notification system

    Your OTP is queued behind 20 million sale SMS. How does it skip ahead?

    Play the 60-second story
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    1. 60-second story 9 cards · 1 minOne idea per card. Tap through it like stories.(done)
    2. Quick check 3 questions · 1 minTap an answer, get instant feedback.(done)
    3. Go deeper 11 min4 estimates, 2 build-up diagrams and 6 “you’re the candidate” moments.(done)
    4. Full breakdown 35 min · 14 figuresThe complete breakdown, every number and figure.(done)

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