nyone who’s played a game within the last 40 years probably knows about D&D (Dungeons and Dragons). In its most basic form, players take the role of magic users and warriors and travel into the dungeon of a castle long swept away, to fight all the monsters who horde treasure therein. Economically, it makes no sense. Biologically, it makes no sense. Rationally, it’s a joke. But it’s still fun. But while a dungeon chock full of monsters who understand economic principles (and, seemingly, doorknobs) seems unlikely, equally unlikely are the places that exist beneath London. The remnants of old streets […]