DanielLC comments on Rationality Quotes April 2013 - Less Wrong

6 Post author: Vaniver 08 April 2013 02:00AM

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Comment author: satt 02 April 2013 06:18:07AM *  23 points [-]

Within the philosophy of science, the view that new discoveries constitute a break with tradition was challenged by Polanyi, who argued that discoveries may be made by the sheer power of believing more strongly than anyone else in current theories, rather than going beyond the paradigm. For example, the theory of Brownian motion which Einstein produced in 1905, may be seen as a literal articulation of the kinetic theory of gases at the time. As Polanyi said:

Discoveries made by the surprising configuration of existing theories might in fact be likened to the feat of a Columbus whose genius lay in taking literally and as a guide to action that the earth was round, which his contemporaries held vaguely and as a mere matter for speculation.

― David Lamb & Susan M. Easton, Multiple Discovery: The pattern of scientific progress, pp. 100-101

Comment author: DanielLC 08 April 2013 02:15:16AM 28 points [-]

Columbus's "genius" was using the largest estimate for the size of Eurasia and the smallest estimate for the size of the world to make the numbers say what he wanted them to. As normally happens with that sort of thing, he was dead wrong. But he got lucky and it turned out there was another continent there.

Comment author: [deleted] 08 April 2013 06:09:04PM 4 points [-]

Wait... he did that on purpose?

Comment author: MugaSofer 08 April 2013 07:34:12PM *  12 points [-]

Yes, actually. He believed the true dimensions of the Earth would conform to his interpretation of a particular Bible verse (thwo-thirds of the earth should be land, and one-third water, so the Ocean had to be smaller than believed) and fudged the numbers to fit.

Comment author: [deleted] 09 April 2013 03:35:11PM 4 points [-]

Ah, OK. I had taken DanielLC to be implying that he had fudged the numbers in order to convince the Spanish queen to fund him.

Comment author: skepsci 19 April 2013 07:45:43PM 3 points [-]

Exactly. In fact, it was well known at the time that the Earth is round, and most educated people even knew the approximate size (which was calculated by Eratosthenes in the third century BCE). Columbus, on the other hand, used a much less accurate figure, which was off by a factor of 2.

The popular myth that Columbus was right and his contemporaries were wrong is the exact opposite of the truth.