While many propositions are untrue, in order to be classified as a Great Untruth, an idea must meet three criteria: It contradicts ancient wisdom (ideas found widely in the wisdom literatures of many cultures). It contradicts modern psychological research on well-being. It harms the individuals and communities who embrace it.
I wonder can the reason for including the first criterion be expanded upon? The second two make sense, but why does it need to contradict ancient wisdom to be a great untruth? A lot of ancient wisdom is very bad, seems like the second two would be sufficient criteria!
