But they do have to do something. In fact, they're constantly doing a whole bunch of somethings to keep people in their ecosystem. Apps. Messenger. Instagram.

But they do have to do something. In fact, they're constantly doing a whole bunch of somethings to keep people in their ecosystem. Apps. Messenger. Instagram. They didn't get that network by just being first(ish). They got it by continuously being the best of the imperfect options, and they can lose it just as easily.