Huh?
Let me explain what I mean. Here’s a brief history of Facebook from my own personal experience.
I joined Facebook sometime in mid 2006. It was only open to colleges and universities, quickly followed by cities. Up until that point, the main conversation platforms for myself and my close friends other than in-person conversations, email and the phone were tools such as ICQ followed by MSN chat. Within a few months the majority migrated to Facebook even though it was a step back (lack of chat feature initially) at the same time it was a step forward (social element: 2-way, one-to-many platform, photo sharing, etc…).