William Ross Ashby

W. Ross Ashby (6 September 1903 in London – 15 November 1972) was an English psychiatrist and a pioneer in cybernetics, the study of the science of communications and automatic control systems in both machines and living things. His first name was not used: he was known as Ross Ashby. His two books, Design for a Brain and An Introduction to Cybernetics, were landmark works. They introduced exact and logical thinking into the brand new discipline of cybernetics and were highly influential. https://en.wikipedia.org/wiki/W._Ross_Ashby

http://web.archive.org/web/20160314143656/https://www.gwu.edu/~asc/biographies/ashby/ashby.html

His digitized archive, include decades of journals he wrote. https://www.ashby.info/

Law Of Requisite Variety

Cybernetics, Homeostatic Machine

Disciplinary matrix? http://web.archive.org/web/20120907142126/http://www.gwu.edu/~asc/biographies/ashby/MATRIX/matrix.html

Graham Berrisford lists Ashby’s top ten ideas: Cybernetics principles used in management science