We are now witnessing the build-out of society’s first foundationally new infrastructure in nearly a century: the Cloud. It is an ecosystem of information-digital hardware, at the heart of which resides massive warehouse-scale datacenters unlike anything ever built. Given the resources committed to them and the reverence afforded to the companies that build and own them, datacenters might be called the digital cathedrals of the twenty-first century. The emerging Cloud is as different from the...