Depends on what you mean by "consensus". For example, in some organizations it means "we will not make a decision until literally everyone agrees with it". In which case, stubborn people make all the decisions (until the others get sufficiently pissed off and fire them).
Probably true. But I don't think that's the sort of thing Jim is talking about in the post redlizard was quoting from; do you?
Another month, another rationality quotes thread. The rules are: