The Earth is not flat
Perhaps, because of my age and point of view, I’m not in touch with my audience on one matter, so I’d like to make sure that a very fundamental concept be reviewed. That concept is that we, as a continuing civilization, have had situations where the larger population is assuming, and even defending, a worldview that is later shown to be factually incorrect. And that larger population point of view, on that subject, then will have a tidal change. Oft cited examples are: the mythologies of the Greeks and Romans, beliefs that the world is flat or that the Earth is the center of the universe, that slavery is acceptable, that segregation is acceptable. Eventually fact, in your face fact, inescapable fact, is what turns that tide. And this turning tide, particularly in regard to broad social change, is almost always associated with natural resistance to change. The moving tide is a zone that is tumultuous - vested interests may be at risk; comfortable patterns may be detoured; deep-seat