Group Size and Collective Decision Making
group size and collective decision-making
When there is one, of course "one person decides" (dictatorship).
The time of two is special, and majority rule and unanimous are equal.
I don't think there is much difference between two people talking and making a unanimous decision and one person making a decision after listening to the other person carefully.
I feel like when you get up to 10 or so people, one person should make the decision.
Why is that?
One person listens to N people to make a decision, O(N), and N people talk to each other, O(N^2), because the cost of the latter increases faster.
The problem starts to appear after 30 people.
Because it would be too much for one person to ask, even if it is O(N).
When a majority of people feel that their opinions are not being heard or ignored, they begin to oppose the dictatorship.
So we needed a mechanism to make decisions in a way that wasn't just one person.
One example of its implementation is majority voting.
Indirect democracy is one of them.
Assumption that elected officials will deliberate?
If so, then the limit is about 30 senators.
If "one person becomes unreasonable to listen" is a factor preventing one person from making decisions, then AI's enhancement of human cognitive abilities would increase the number of areas in which a dictatorship would be preferable.
Well, either way, at the level of tens of thousands of people, you need a non-human mechanism.
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