Once upon a time, in a magic, faraway land called “The 1990s,” every application had its own set of physical servers. Citizens of this land, who sometimes called themselves “developers,” feared getting fired for not having enough capacity to handle peak loads. New physical servers took months to be delivered, so developers ordered more data center hardware than they probably needed. Because it was so difficult to get new machines, developers treated them like pets, gave them names and took great care to keep them up and running at all times. Everybody was so excited about the “Internet Bubble” and the land grab that was going on that no one seemed to care about underutilized hardware.