Facebook is massive, at nearly 2 billion users they hold a monopoly that covers most of the connected world, and it's only going to continue to grow. They are n

Facebook is massive, at nearly 2 billion users they hold a monopoly that covers most of the connected world, and it's only going to continue to grow. They are not going away. Twitter on the other hand, it's not that they have failed, but probably that they were aiming a bit too high. Investors were likely expecting another Facebook, but Twitter is never going to become that, because it's not perceived as a fundamental part of people's digital lives. Everyone has a Facebook account, but only some use Twitter.