One example of where this is counter-intuitively wrong is that you end up with more diverse ideas if people brainstorm in private than in a group. I think the

One example of where this is counter-intuitively wrong is that you end up with more diverse ideas if people brainstorm in private than in a group. I think the reality of face to face meetings is that the result is often almost predetermined based on the existing group dynamics. How many people are turning up to the meeting feeling their input will make a difference versus people with (probably) the dominant personalities who are happy their established conclusion is chosen. And seeing the later as naturally coming to a better conclusion, faster. As a dominant personality in meetings I definitely think about the effects of that a bunch.