Gavin Andresen - 2013-05-31 00:16:13

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How do you prevent Sybil attacks-- somebody creating a gazillion n-client and/or hatching nodes, and voting themselves lots and lots of new currency?

And how does a node choose a "random" node-- does every node know about every other node?  If yes, then how do you avoid getting O(N^2) communication as the number of nodes (N) rises and every existing node must be told about every new node?