“At least part of the friction and frustration in a lot of meetings results from the fact that half the room thinks they are there to make a decision, the other half to debate. The would-be deciders are furious that the debaters don’t seem to be driving toward an answer. The would-be debaters are furious that the deciders are refusing to think things through carefully enough, to consider every angle of the argument. When everybody knows that the meeting will end with no decision, this source of tension is eliminated.”