Zuckerberg’s 3 predictions for what social networks will look like in 10 years :The future of computing is augmented reality: distraction-free, heads-up communication.

so THAT's why he bought a virtual reality company that fixes a heavy, opaque black box to your head.

http://venturebeat.com/2015/01/14/zuckerbergs-3-predictions-for-what-social-networks-will-look-like-in-10-years/