An article very much worth reading by VR guru Jaron Lanier:

The open-source software community is simply too turbulent to focus its tests and maintain its criteria over an extended duration, and that is a prerequisite to evolving highly original things. There is only one iPhone, but there are hundreds of Linux releases. A closed-software team is a human construction that can tie down enough variables so that software becomes just a little more like a hardware chip—and note that chips, the most encapsulated objects made by humans, get better and better following an exponential pattern of improvement known as Moore’s law.