A room of brains needs a floor, not a queue
What happens when several brains answer the same question, and why turn-taking is the whole design.
Put three brains in one conversation and the naive design is a queue: ask each in turn, print the answers in order. It reads like three press releases stapled together. Nobody refers to anybody, the second answer repeats the first, and the third is whichever one happened to be longest.
What makes a room a room is that a turn is taken against what has already been said. Each speaker reads the thread as it stands, including the colleague who just spoke, and answers into it.
The part that is easy to get wrong
A round where one member cannot take their turn used to be indistinguishable from a round with one fewer member: the reader got a gap and no explanation. It now says so, names the member, and offers the floor to them again — which is not the same as re-sending the question, because the colleagues who did answer keep their turns and the reader's message is not asked twice.
Silence should be visible. A room that quietly drops a member teaches its reader to trust a roster that is not what they are actually hearing from.