http://gladwell.com/2001/2001_11_26_a_diaper.htm a triumph of capitalism? "The paper diaper changed parenting. But a diaper that could hold four insults without leakage, keep a baby's skin dry, clear an insult in twenty seconds flat, and would nearly always be in stock, even if you arrived at the supermarket at eight o'clock in the evening--and that would keep getting better at all those things, year in and year out--was another thing altogether." 09:51