Thanks for the helpful information, Reg. And for those of you who would like to super-size your stupidity and arrogance, don't forget to eschew the internal combustion engine (Etienne Lenoir), Pasteurized milk, Braille, the altimeter (Louis Paul Cailletet), the Diesel engine, pencils (Nicolas Conte), SCUBA (Emile Gagnan and Jacques Cousteau), the stethoscope (Rene Theophile Hyacinthe Laënnec), digital calculators (Blaise Pascal), the bikini (Jacques Heim and Louis Reard), parachutes (Louis Sebastien Lenormand) and sewing machines (Barthelemy Thimonnier).