Based on Mark's actions and announcements over the years, from Internet.org to his "The next decade" speech where he said they're building a network for all local businesses to "better connect with their communities," it's clear that Mark's One True Goal is that all digital information flow through Facebook, so that it can be analyzed, collated, and advertised against.

Mark wants every part of human society, from birthday wishes to buying a car to finding a local barber to political debates, to operate through Facebook's servers.

The real question is why - is it just about the money for him? Does Mark dream of being a trillionaire before Bezos? Or is it about control? Does Mark want to be The Guy Who Knows Everything?