I have the same problem with this that I do with "federated forums" or "federated forges"—what does it even mean for an encyclopedia to be federated? In fact, t

I have the same problem with this that I do with "federated forums" or "federated forges"—what does it even mean for an encyclopedia to be federated? In fact, they already are—if I want to go look up information about Minecraft, I can use the federated internet to go to minecraft.wiki. So what are these new "federation" features actually giving us? Is it just OpenID login reinvented?