There is this project which has the goal of building a decentralized Facebook - https://www.scuttlebutt.nz https://www.scuttlebutt.nz I think it will eventuall

There is this project which has the goal of building a decentralized Facebook - https://www.scuttlebutt.nz https://www.scuttlebutt.nz I think it will eventually happen, but I don't see how mass adoption will occur. Facebook grew a lot by getting our complete address book on signup and sending invitations to the whole list.