The budget for moving our family to Honolulu was tight, judging from the tiny cottage we rented and the rusted-out Ford Fairlane we bought to get around. My brother Kevin and I took turns sleeping on the couch. I was thirteen; he was nine. But the cottage was near the beach—just up a driveway lined with other cottages, on a street called Kulamanu—and the weather, which was warm even in January, when we arrived, felt like wanton luxury.
It’s impossible to discuss new developments in money without thinking for a moment about what money is. The best place to start thinking about that is with money itself. Consider the UK’s most common paper money, the English five or ten or twenty quid note.