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Re: [Cryptography] reliable broadcast channel



On Thu, Nov 05, 2020 at 09:05:21AM +1000, jamesd AT echeque.com wrote:
> But interesting protocols are likely to involve small groups in which we
> want the transaction to fail if more than half the participants are
> defecting.

Doesn't "Reaching Agreement in the Presence of Faults" prove that if a
majority of participants are defecting, you *can't* reach consensus? 
Alternately, if over half the participants are coordinating, what's to say
their version of reality isn't the "correct" one, even if the other
participants disagree?

- Matt

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