Google's Cardboard has proved to the masses that virtual reality is more than a pipe dream. Inexpensive cardboard headsets leverage smartphones to create makeshift head-mounted displays for low-level VR experiences. For those whose fancies of owning a US$600 Rift or a $900 Vive were out of reach, Cardboard was a way to keep their imaginations captive while Google was dreaming of Daydream. Coming two full Google I/O developer conferences after the introduction of Cardboard, Daydream gathers novel and nebulous ideas into a cohesive ecosystem.