Subject: What's a consensus?
Author:
Posted on: 2017-04-30 08:52:00 UTC

We make our decisions based on consensus here most of the time. What does that look like?

How do I know if we've decided on something?

Does six people agreeing to something with no objections voiced demonstrate consensus? It apparently has at least once, since I'm posting this and no one seems to mind.

Then how about three people unanimously in favor? Two people? One?

Is asking for comments on a proposed course of action and being answered by a long, apathetic silence mean that everyone agrees to it by way of not having an opinion?

Is agreement among a simple majority of voters evidence of consensus? (I don't think so.) Is it enough to go forward with a decision anyway? (I don't think so either, in most cases. Certainly not for permabans.)

Does the presence of even one dissenting voice change the process of consensus-detection significantly?

Does an unresolved objection automatically trigger a vote?

Do the answers to these (and other) questions change depending on what we're trying to decide on?

Is this post probably not going to get many responses because discussion fatigue is a thing that happens? (Yeah, probably. I'm making it anyway.)

And finally, does answering these questions require us to hold an elaborate ceremony on the island of Paxos? This is, after all, itself an asynchronous consensus problem.

- Tomash

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