Off topic, but god I just wish Facebook would disappear. It's ironic that such a popular company with such a huge valuation would produce an immediate and significant benefit to me if it just disappeared overnight.
It begs the question, do you mean Facebook the social network, or Facebook the company? Because there are surely many benefits coming from the company that don't necessarily depend on the social network.
It's hard to imagine one existing without the other
I think one existing without the other could certainly be the case in the nearish future. Not everything they're doing is tied into the Facebook site.