Total collapse will never happen.
Personally, I think Zuckerberg has probably three years of CEO ‘bossing’ left. The board will look over the direction ahead and realize that they don’t need a techno-geek....but a full-time diplomat and business executive.
There’s supposed to be an alternative to Facebook coming out by the end of the year in Europe (you’d pay to be a member, but it’d be 100-percent private data). My guess is that they will lose 10-to-15 percent of their active users when this occurs.
Between that, the 2020 election, and likely continuation of ‘fake’ news...Facebook will stumble, the stock drops by 50-percent, and likely get bought by someone (maybe Google...maybe Microsoft).
It will end up like MySpace. It is probably still around but nobody cares.
Facebook is so yesterday. Now they all use SnapChat and that will be replaced by the next fad.
Hardly any of my “friends” post anything anymore. It used to be heavy activity with so many people posting about what’s for dinner, vacations etc. Now nobody seems to care.
When email came out everyone was always sending jokes and stupid stuff constantly. You never see that anymore either. The same thing happened with fax machines. People were always sending funny stuff.