{"id":1463,"slug":"maclaurin-epigraph-three-months-thirty-years","title":"Lord MacLaurin epigraph — \"you know more about my customers after three months than I know after 30 years\" (Tesco Clubcard, 1994)","kind":"reference","scope":"business","status":"current","audiences":["kevin","smb-owner","candid-team"],"topics":["information-asymmetry","customer-retention"],"reference_body":"**Claim.** Lord (Ian) MacLaurin, then-chairman of Tesco, told the board after seeing the Clubcard trial results that the new data outpaced 30 years of accumulated executive intuition about customers.\n\n**Quote.**\n> \"What scares me about this is that you know more about my customers after three months than I know after 30 years.\"\n\n**Source.** Recounted across multiple independent sources including Computer Weekly and Information Age (accessed 2026-06-21). Attributed to MacLaurin's remark to the Tesco board on first seeing the Clubcard trial results.\n\n**Confidence.** Industry-consensus. Quote is widely circulated; original verbatim utterance not independently confirmed beyond participant recall.\n\n**Caveats.** Like most \"quoted to the board\" remarks, the verbatim is unverifiable; multiple sources converge on substantively identical wording, which raises confidence to IC but not V. Treat as attributed paraphrase, not court reporter transcript.\n\n**Implication / use.** Perfect epigraph for the information-asymmetry thesis. Captures in one line what 200 pages of OR textbook take to argue: the data outpaced the intuition of the most experienced operator at the top of the business.","rationale_body":null,"metadata":null,"links":{"outgoing":[{"slug":"research-brief-information-asymmetry-decision-edge-june-2026","title":"Research notes (capture-layer): the affirmative, inward decision-edge case for data intelligence — information asymmetry applied to pricing, demand, risk, retention, targeting (June 2026)","kind":"research-notes","scope":"business","link_type":"depends-on"},{"slug":"tesco-clubcard-1994-trial-9-stores-50m-tx","title":"Tesco Clubcard 1994 trial — 9-14 stores over 3 months, >50 million transactions; dunnhumby analysed ~10pct sample","kind":"reference","scope":"business","link_type":"relates-to"}],"incoming":[]},"created_at":"2026-06-21T01:14:48.716Z","updated_at":"2026-06-21T01:14:48.716Z"}