From Babylon to Boston, cities have always been hubs of economic growth and cultural activity. Bringing people from around the world to cohabitate, explore new ideas, and transact in new ways. Often, these cities are shaped by technological change – whether it be the discovery of new resources (giving rise to early trade routes and ports in ancient Babylon) or the capturing of new power sources (birthing factories of the Industrial Revolution in Boston) – the history of cities is a history of...