Zuck is "not just making a prediction", he's not making any relevant statement about the future at all.
All he does is telling what he plans to invest in. But given his privileged position, that's almost as irrelevant as what he is going to have for dinner tonight, if his plans for the next decade do not address the urgent and burning issues that keep the rest of humanity awake at night in earnest.
I'm sure AR "is the future" in a decade. But then you'd have to ask to whose benefit and to what ends.
If a billionaire makes swiping statements about the social good, then I expect a proper argumentation that shows an understanding about the vast complexity involved, and their according responsibilities. Not vapid filler that reduce the issues to a mere generational conflict such as:
> Today, many important institutions in our society still aren't doing enough to address the issues younger generations face -- from climate change to runaway costs of education, housing and healthcare. But as millennials and more members of younger generations can vote, I expect this to start changing rapidly. By the end of this decade, I expect more institutions will be run by millennials and more policies will be set to address these problems with longer term outlooks.