But what if you had to buy one endlessly replenishing box of cereal that you would eat from for the rest of your life? Or what if you could only change your cereal at a tremendous cost: you lose 75 percent of your friends and you must move 100 miles away. Oh, and everyone you meet will judge you on your choice of cereal. Under these conditions, choosing between options is not a matter of prudence, but an existential burden.