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Letter: Mathematical reality

Published 10 October 2007

From Christopher Mead

Jorge Luis Borges wrote in On Exactitude in Science of an empire that created a map that was as large as the empire itself. It seems that Max Tegmark is replicating this with his extrapolation of the mathematical models that have been designed to simulate the universe. It is important to keep in mind that the map is not the terrain. Models used by mathematicians and physicists often produce nonsensical answers that must be placed back into conceptual context before they can be useful. While I am willing to accept that the equations point to Tegmark’s level-IV multiverse, I would much rather see some kind of contextual evidence.

Portland, Oregon, US

Issue no. 2625 published 13 October 2007

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