“In our age I think it would be fair to say that the ease with which a scientific theory assumes the dignity and rigidity of fact varies inversely with the individual’s scientific education. In discussion with wholly uneducated audiences I have sometimes found matter which real scientists would regard as highly speculative more firmly believed than many things within our real knowledge; the popular imago of the Cave Man ranked as hard fact, and the life of Caesar or Napoleon as doubtful rumour. We must not, however, hastily assume that the situation was quite the same in the Middle Ages. The mass media which have in our time created a popular scientism, a caricature of the true sciences, did not then exist. The ignorant were more aware of their ignorance then than now” — CS Lewis, The Discarded Image