Geary works in air-conditioning. I was wondering how ill-designed cities (and the world, at large, or generally) is designed (cfr. 'global warning'). Take New York: snow in winter (you need heating system), Indian summer in the summer -- you need air conditioning. Geary objects to the implicature, 'air conditioning' to mean "cold". "Surely if you ask if someone has air-conditioning in his house, the entailment should entail heating, too, but this is practically always cancelled". In general, all the Caribbean and Equatorian countries are a bother to live in since they don't have the four seasons, just the rainy season, and the hot season. Strictly, these people have evolved to live without air conditioning, I believe. ----- Geary will perhaps think that Rome is the ideal city. You don't need air-conditioning in the summer or heating in the winter. The history of air-conditioning-cold postdates the history of heating. People (Men) have always recoursed to 'fire' as a way to heat their houses. On the other hand, the first air-conditioning-cold was invented in England (or India, I'm not clear about this). Etc. Speranza --- Bordighera