But a human isn't a bunch of individual cells, it is a cell that cloned itself many times. Those cells all have the same base code and can thus become an intelligent committee.
At least a committee of 10 identical members wont be dumber than a single member most of the time. A committee of clones is just scaling up compute in order to solve larger problems. Imagine if you could clone yourself with your knowledge and mental state, much more useful than trying to cooperate with another human.
I always felt that the decrease in intelligence is a side effect of the necessary consensus mechanisms.
10 genius clones would still take on various roles/positions in the system, requiring some optimization with respect to alignment under time/energy constraints.
