“Think of all our knowledge-generating processes, our whole culture and civilization, and all the thought processes in the minds of every individual, and indeed the entire evolving biosphere as well, as being a gigantic computation. The whole thing is executing a self-motivated, self-generating computer program. More specifically it is, as I have mentioned, a virtual-reality program in the process of rendering, with ever-increasing accuracy, the whole of existence.”
The Fabric of Reality (1997)
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David Deutsch 20
British physicist 1953Related quotes
Source: Exploring the Crack In the Cosmic Egg (1974), p. 9-10

§5.4
Notation as a Tool of Thought (1979)
As cited in Donald Knuth (1972). "George Forsythe and the Development of Computer Science" http://www.stanford.edu/dept/ICME/docs/history/forsythe_knuth.pdf. Comms. ACM.
"Educational implications of the computer revolution," 1963

Dijkstra (1968) " A Case against the GO TO Statement http://www.cs.utexas.edu/users/EWD/ewd02xx/EWD215.PDF" cited in: Bill Curtis (1981) Tutorial, human factors in software development. p. 109.
1960s

"On Dialogue"
Context: Dialogue is really aimed at going into the whole thought process and changing the way the thought process occurs collectively. We haven't really paid much attention to thought as a process. we have engaged in thoughts, but we have only paid attention to the content, not to the process. Why does thought require attention? Every thinking requires attention, really. If we ran machines withinout paying attention to them, they would break down. Our thought, too, is a process, and it requires attention, otherwise its going to go wrong.

Dijkstra (1986) Visuals for BP's Venture Research Conference http://www.cs.utexas.edu/users/EWD/transcriptions/EWD09xx/EWD963.html (EWD 963).
1980s

As quoted in Kerrang! (14 December 1996).
1990s