Well, yes, but that's true with pretty much everything. If you're addicted to reading Clancy novels, you spend more time reading Clancy novels and less time tal

Well, yes, but that's true with pretty much everything. If you're addicted to reading Clancy novels, you spend more time reading Clancy novels and less time talking to friends, therefore Clancy novels are more addictive than heroin. Sounds ridiculous, right? Yes, there's a positive feedback dynamic in any addiction, every basic text on it mentions it. But that's no reason to jump to "most people never would be able to get rid of the habit". This dynamic can be overturned, and there are many tools to do it, and in this particular case it's easy - you body won't disintegrate and you would not feel like armies of Hell descended on you to torture you if you don't use facebook for a week.