What the cases proved

Five numbers, each with a published case behind it — method, data and result.

Now

  • Building out this site: the personal layer, the knowledge graph, a 10-mini-game arcade.
  • Maintaining an Obsidian knowledge base on product analytics — a structured Zettelkasten with automation.
  • Preparing for BI / Data Analyst and Product Analyst junior-level interviews: SQL, pandas, algorithms, mocks.
  • Experimenting with AI-assisted analytical workflows on Claude Code + MCP.
  • Writing about practical data techniques: A/B testing, cohort analysis, RFM segmentation.

Updated · October 11, 2026

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