Facebook as virtual world
In the future, Mr. Zuckerberg imagines that "a physical thing, like a TV, will just be a $1 app" inside virtual reality on Facebook, he recently told a conference of software developers building apps for Facebook. But that may be 10 years off, by Mr. Zuckerberg's own admission. People who do not work at Facebook might say it is a fantasy.
Facebook even appears willing to turn the price-crushing model on itself. To get virtual reality to every place in the world, Facebook's Oculus VR headsets, currently $600, may have to cost $5, said Mike Schroepfer, the company's chief technology officer.
Is that another fantasy? For Facebook, getting those costs down could mean controlling the next big communications platform, since Mr. Zuckerberg believes virtual reality may eventually supplant smartphones as a primary connection to the online world.
"The world is making enough phones. It's better for the world if there are fewer devices," Mr. Schroepfer said. "It's not totally obvious how all this shakes out -- whether we'll have lots of consumer products, or it all disappears into a couple of VR headsets."