Hammer. Rake. Spatula. All tools. Tools that when used properly can be useful. But no guarantees. Here's another tool: Delphi Method.
The Delphi method is a structured communication technique or method, originally developed as a systematic, interactive forecasting method which relies on a panel of experts. The experts answer questionnaires in two or more rounds. After each round, a facilitator or change agent provides an anonymous summary of the experts' forecasts from the previous round as well as the reasons they provided for their judgments. Thus, experts are encouraged to revise their earlier answers in light of the replies of other members of their panel. It is believed that during this process the range of the answers will decrease and the group will converge towards the "correct" answer.
I'm familiar with the Delphi Method from business. For example, when estimating how long a development project will take, the project team members use the Delphi Method to come up with a group estimate that is better than the estimate of a single project member, even the most senior. At least, it usually is. But no guarantees.
What the Delphi Method is not is mind control. It wasn't developed for the U.S. Defense Department "for use as a psychological weapon during the cold war" as one tinfoil hatter
asserts. Nor is it intended for "manipulating ANY meeting toward a predetermined end." At least not any more than a hammer is, although I suppose someone could raise a hammer in the air at a meeting to get attention. But if that happens, don't blame the hammer.
What does all this have to do with Richardson?