Imagine arguing against the divine right of kings, spontaneous generation, the sale of indulgences, necessity of inflation, geocentrism, Lysenkoism, Mercantilism, etc. Used to be illegal in Europe to dissect people because we already knew everything via Galen of Pergamon.

Everyone thinks we got it all figured out now but we still cut the tips of boy dicks and debate the significance of the color jacket the treasury secretary was wearing.