The document discusses the evolution of software-defined infrastructure through OpenStack. It summarizes that:
1) OpenStack is an open source cloud framework founded by NASA and Rackspace in 2010 that allows for massively scalable compute, storage, and networking resources through shared pools.
2) The ecosystem around OpenStack has grown tremendously, with many large technology companies either contributing to or using the platform.
3) Adopting OpenStack through solutions like Piston Enterprise OpenStack can provide significant benefits around speed of deployment, reduced hardware costs, and decreased headcount needs.