“Why would anyone spend thousands of dollars on a Prada handbag, an Armani suit, or a Rolex watch? If you really need to know the time, buy a cheap Timex or just look at your phone and send the money you have saved to Oxfam. Certain consumer behaviors seem irrational, wasteful, even evil. What drives people to possess so much more than they need?” But then: “Most people own things that they don’t really need. It is worth thinking about why.”