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Letter: On the heat problem of computation

Published 29 January 2025

From John Theophilus, Bream, Gloucestershire, UK

As I understand it, “Backwards computing” asserted that the bulk of heat emitted by computers arises from changes to information in the process of doing calculations. Does this apply to other media? How about a sheet of paper on which difficult sums had been written(28 December 2024, p 38)?

Issue no. 3528 published 1 February 2025

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