Almost every major systematic error which has deluded men for thousands of years relied on practical experience. Horoscopes, incantations, oracles, magic, witchcraft, the cures of witch doctors and of medical practitioners before the advent of modern medicine, were all firmly established through the centuries in the eyes of the public by their supposed practical successes. The scientific method was devised precisely for the purpose of elucidating the nature of things under more carefully controlled conditions and by more rigorous criteria than are present in the situations created by practical problems.
Generally speaking, the evolution of human understanding can be seen as a move from surface observations, processed by our limited five physical senses, “intuitively” filtered through the educational framework & value characteristics of that period of time, to the technique of objective measuring and self- advancing methods of analysis which work to arrive at (or calculate) conclusions through testing and retesting proofs, seeking validation through the benchmark of scientific causality – a causality that appears to comprise the physical characteristics of what we call “nature” itself.
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