This is a teaching problem, because (like most things that are taught) there's no way for most students to verify it. People who seek out areas of ambiguity or

This is a teaching problem, because (like most things that are taught) there's no way for most students to verify it. People who seek out areas of ambiguity or contested models in later life, after formal or professional education: good luck to them. They would surely benefit from your suggestion. But the rest of us are going to have to just believe what we are told, having applied certain personal heuristic filters to the info we are getting...