“Well, I know that sounds like common sense,” I said, “but the funny thing is, economically, that’s not how loans are actually supposed to work. Financial institutions are supposed to be ways of directing resources toward profitable investments. If a bank were guaranteed to get its money back, plus interest, no matter what it did, the whole system wouldn’t work. Imagine I were to walk into the nearest branch of the Royal Bank of Scotland and say ‘You know, I just got a really great tip on the horses. Think you could lend me a couple million quid?’ Obviously