And just because it's happened in the past does not guarantee that it will happen again. People have been predicting the downfall of Facebook for years, but it keeps growing.

It will, I can think of a ton of services I've used in the past that one day you just stop logging on. You don't even remember the last day of using them, just one day you stop. Then slowly everyone stops. (E.g., AOL, AIM, Geocities, IRC^, MySpace, and most recently Path & Instagram).

I assume the same will happen in my life for Facebook, Reddit, Twitter, etc. One day I will just stop.

^I use IRC for dev stuff now, but there was a good 5 years where it was no longer a part of my life. I was a gamer who played CS in the early 2000s.

Obviously nothing stays around forever. But there is a big difference between a trendy app that everyone uses for a couple years and then stops, and Facebook, which many people don't use on a daily basis but still keep it around because its usefulness outweighs the effort required to keep your account. I have friends who have deleted their Facebook accounts, only to come back a month later with a very basic account just because they need to keep in touch with some circle of friends that they otherwise wouldn't be able to.

Not at all obvious to the investors who value these companies at tens and hundreds of billions of dollars. They don't expect them to dissapear in 5-10 years

Seeing as how Facebook has been around for over 10 years now, I don't see how that's relevant in this case.

Reddit? Perish the thought :-)

I am not talking about the future, I'm talking about right now, at this moment. I can't predict the future but I can give my view point from this point in time and that's what I've done. I'm sorry that's not good enough for you.

Your reply was in reference to the future, so it's logical for a reader to assume that's what you were talking about.

> If specialized apps start to show up, people may start ditching FB altogether.