Edward Fredkin

Edward Fredkin (October 2, 1934 – June 13, 2023)[1] was an American computer scientist, physicist and businessman who was an early pioneer of digital physics.[2] Fredkin's primary contributions included work on reversible computing and cellular automata. While Konrad Zuse's book, Calculating Space (1969), mentioned the importance of reversible computation, the Fredkin gate represented the essential breakthrough.[3] In more recent work, he used the term digital philosophy (DP). https://en.wikipedia.org/wiki/Edward_Fredkin