When in doubt, put it to the t-test.
I liked the Michael Marmot comment about challenging one's own hypothesis to see if something can break it down. Too seldom done, because people want certain things to be true.It put me in mind of the Medieval scholastics teaching a doctrine by trying as good a version as they could find of all the challengers. It makes for lengthy, tedious reading, but some precision of thought.
Agreed. If everyone in the room's thinks the same thing, someone needs to switch sides for a bit.