MySpace peaked at 75M monthly users, which is a rounding error to FB's 3B monthly users. That fact alone is major, the network effects for both FB and GOOG make

MySpace peaked at 75M monthly users, which is a rounding error to FB's 3B monthly users. That fact alone is major, the network effects for both FB and GOOG makes them very hard to replace in and off itself. For instance, a competitor would have to capture practically all of the connected world population to takeover Messenger. Their sheer size and importance makes them unavoidable for most other-party web platforms cementing their position. Pile on to that the fact they both have 12 digits war chests capable of buying any upcoming competitor (for instance Instagram) or trying to crush them, this comparison to MySpace which comes up every time with this discussion is fallacious. There are reasons why the web is "Winner takes all/most" and is now centered around a handful of companies with sectorial monopolies, I have a hard time to see how a component of FAAAM could fail naturally any time soon.