Edward Fredkin’s Contributions to Science
The American computer scientist and physicist, Edward Fredkin, passed away in June, leaving behind a remarkable legacy despite the lack of attention his death received.
Fredkin made significant contributions to the fields of computer sciences and physics. He claimed that the laws of physics and the universe itself are the result of a computer algorithm [1]. This notion is gaining popularity, with Norman Margolus, a Canadian scientist, stating that it is now considered a respected idea [1].
In the late 1960s, Fredkin recognized the potential difficulties that could arise in the field of artificial intelligence, particularly in terms of national security. Consequently, he actively advocated for international cooperation in this area.
Fredkin also played a crucial role in the advancement of reverse calculations. Despite initial doubts about the feasibility of this approach on classical computers, Fredkin and his colleagues demonstrated that certain logical valves can perform reversible operations.
However, Fredkin’s most intriguing proposition was the concept of representing the Universe as a “cellular automaton” – a collection of computing cells governed by specific rules. He speculated that these simple rules could give rise to the complexity observed in the cosmos.
Seth Lloyd, an engineer from MIT, suggests that understanding quantum-mechanical phenomena may necessitate a transition from classical computational rules to quantum principles within Fredkin’s “digital universe” theory. This approach holds the potential to unravel some of the profound mysteries in physics, including the quantum theory of gravity.
Scientists believe that if the Universe truly emerges from a quantum-level system, it may unlock insights into yet unexplored aspects of quantum mechanics, thereby ushering in a new chapter in the history of science.