This article was shared by Mark himself and a bunch of employees. So I guess they won't be that wrong:
To further grow these services and any others that Facebook develops or acquires, Zuckerberg is betting his company’s future on three major technology initiatives. One is developing advanced artificial intelligence [...] The second is virtual reality [...] which Zuckerberg believes will be the next major technology we use to interact with each other. And the third is bringing the Internet [...] to the 4 billion–plus humans who aren’t yet connected.
We read this and it seems so logical and downright normal that we don't even realize what that actually means. But AI is not only M, facebook's answer to Amazon Echo and Siri and Cortana, but also really understanding people through advanced math, algorithms, their interests and their behaviours, running a lab that would probably make many universities proud, with bright minds who figure out academic, yet someday economic challenges. The second enables us as users and Facebook to use that intelligence not only for communication, but for immersive, full body-and-mind-experiences. The Oculus VR headset of today is just a start. Read this lengthy piece about Zuckerberg and his company to not only see the creepy, but also positive side of where we're heading.