Keith Thompson's life reads like a quiet refutation of the idea that credentials predict capability. He failed his 11-plus. He left technical college at 16 with nothing on paper. He'd lost sight in one eye to a golf club accident at ten. And from that starting position, he built a career that took him to more countries than most diplomats visit, teaching governments and universities how to keep food from rotting after harvest. The trajectory is worth tracing because it no longer exists in the same form. Thompson entered horticulture through an apprenticeship with Halifax Public Parks — a local government body that paid working-class kids to learn a trade. He stacked Royal Horticultural Society qualifications, then GCEs, then A-levels in botany and zoology, then a degree at Wye College (University of London), then a PhD from Leeds. Each rung was available because public institutions offered it. The ladder was real. His specialty — optimum harvest, packing, and storage of fruit and root crops — sounds unglamorous until you remember that post-harvest loss destroys roughly a third of food production in developing countries. Thompson spent two decades at the government-run Tropical Products Institute, funded by the Overseas Development Administration, doing fieldwork in Trinidad, Colombia, Nigeria, Ethiopia, Zambia, Turkey, Thailand, and Yemen. This was applied science at its most consequential: the difference between a harvest that feeds people and one that rots in transit. The Yemen anecdote is the obituary's set piece, and it earns its place. Thompson was on a field trip outside Aden in 1986 when the South Yemen coup erupted. He and a local colleague trekked to a coastal refinery compound, from which British nationals were evacuated by HMY Britannia — the royal yacht, diverted for the purpose. His souvenir was a Royal Navy sweater. The detail is perfect: no medal, no commendation, just a borrowed jumper to keep warm. From 1987 to 2000 he held a professorship in crop science at Cranfield University's Silsoe campus, where many of his students came from the countries where he'd worked. The circle closed neatly: knowledge developed in the field returned to the field through the people who needed it most. After retirement and divorce in 2004, he settled in Marsden, West Yorkshire, drawn by the jazz festival. In 2020, at 82, he was still teaching — a course at King Mongkut's Institute of Technology in Bangkok, where he met Pikunthong Nuktamna, a psychology lecturer who became his partner. What this obituary captures, without saying so directly, is a model of public investment that generated enormous returns: a boy with no qualifications, funded through apprenticeships and public universities, became someone who taught half a dozen countries how to feed themselves more efficiently. The infrastructure that made Thompson's career possible — municipal apprenticeships, accessible higher education, government-funded overseas development — is largely dismantled or diminished in 2025. The life is complete. The pipeline that produced it is not.