[iron_ball]

Overly optimistic. When Facebook dies -- and let us assume it will some day die -- who will import its data and carry on? Who will archive it? They save everything, today, but I doubt "long-term store of knowledge about individual humans" is one of their explicit design goals.

[donaq]

Well, Geocities used to be a behemoth only a company with mega resources like Yahoo could undertake. When it went down, a few individuals archived most of it [citation needed]. I'd imagine that if and when Facebook goes down, something along those lines might happen.