Norbert Wiener the development of the digital theory. Wiener originated cybernetics, a formalization of the notion of feedback, with many implications for engineering, systems control, computer science, biology, philosophy, and the organization of society. Wiener's work with cybernetics influenced Gregory Bateson and Margaret Mead, and through them, anthropology, sociology, and education. A simple mathematical representation of Brownian motion, the Wiener equation, named after Wiener, assumes the current velocity of a fluid particle fluctuates randomly. For signal processing, the Wiener filter is a filter proposed by Wiener during the 1940s and published in 1942 as a classified document. Its purpose is to reduce
William James Sidis of intelligence as "silly, pedantic, absurd, and grossly misleading". Regardless of the exaggerations, Sidis is judged by other high IQ peers such as MIT Physics professor Daniel Frost Comstock and notable American mathematician Norbert Wiener to have had real ability. Sidis' life and work, particularly his ideas about Native Americans, are extensively discussed in Robert M. Pirsig's book "" (1991). Sidis is also discussed in "Ex-Prodigy", an autobiography by mathematician Norbert Wiener (1894–1964), who was a prodigy himself and a contemporary of Sidis at Harvard. A Danish author Morten Brask wrote a fictional novel based on Sidis' life; "The Perfect