What do you think will happen to the "credulous and literal-minded" if they walk into the "ancient trap" that Gregory considers history to be?

Gregory seems to suspect that the "credulous and literal-minded" are in danger of putting history on a pedestal, regarding all historical facts as true or untrue, without any understanding of culture or context. They may not realize that history can have more than one perspective or that different people may view the same historical events in different ways.