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Letter: No human traders need that kind of speed

Published 15 May 2019

From Eric Kvaalen, Les Essarts-le-Roi, France

Mark Harris asks us to imagine a trader in London wanting to access data from New York: if it were routed via SpaceX's planned constellation of satellites, it might reach her in 45 milliseconds. (4 May, p 44)

If that kind of speed were needed, the trader would be neither a “she” nor a “he”, but an “it” – an algorithm.

Issue no. 3230 published 18 May 2019

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