TODAY
Log a problem after solving it. It'll come back for cold-recall review at 3, 10, and 21 days — that's what actually locks patterns in.
0 / 12 concepts covered
Breadth pass first — one line of "what it is + why it exists" per concept. Depth comes later through HLD/LLD problems, not more reading.
Sunday deep-dive notes
This tab isn't for new learning — it's for rehearsing what you already know out loud, in writing. If something here feels shaky, that's contextual learning for the week, not a new parallel track.