04 · Concept
Write-ahead logging (WAL)
Why does writing every change twice make commits faster?
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- 60-second storyOne idea per card. Tap through it like stories.(done)
- Quick checkTap an answer, get instant feedback.(done)
- Go deeper2 estimates, 2 build-up diagrams and 4 “you’re the candidate” moments.(done)
- Full breakdownThe complete breakdown, every number and figure.(done)