https://en.wikipedia.org/wiki/Konrad_Zuse
"Turing and Zuse had many similar ideas. But they did not know each other, they were isolated. It
was not until the end of World War II that they heard about their respective achievements. And in
late summer 1947 there was a mysterious meeting in Göttingen. British scientists of the National
Physical Laboratory (Teddington, London) interrogated German researchers. Participants included
Arthur Porter, Alan Turing and John Womersley (England) as well as Heinz Billing, Helmut Schreyer, Alwin Walther and Konrad Zuse. This reunion is described by the memoir of the German computer pioneer Billing from the Max Planck Institute for Physics (Munich). However, In the memoirs
published by Porter and Zuse the colloquium at Göttingen is not mentioned. As all the actors have
died, it is difficult to verify the story. At the moment, we are still looking for further evidence." https://web.archive.org/web/20130521211106/http://www.mathcomp.leeds.ac.uk/turing2012/Images/Turing_Zuse.pdf
"In 1967, Zuse suggested that the universe itself is running on a cellular automaton or similar computational structure (digital physics); in 1969, he published the book Rechnender Raum (translated into English as Calculating Space).[15][16][17] "Ahttps://en.wikipedia.org/wiki/Konrad_Zuse#1945-1995
Simulacron-3 was published in 1964 & written by, Daniel_F._Galouye.
https://en.wikipedia.org/wiki/World_on_a_Wire#Plot
https://en.wikipedia.org/wiki/The_Thirteenth_Floor#Plot
Echoes of Other Worlds: Sound in Virtual Reality: Past, Present and Future
By Tom A. Garner
https://books.google.ca/books?id=dbszDwAAQBAJ&pg=PA141&redir_esc=y#v=onepage&q&f=false
https://philpapers.org/rec/GAREOO-2
https://ap2hyc.com/2021/04/tumbling-down-the-rabbit-hole-alice-allusions-in-the-matrix/
https://www.massive-cinema.com/storyboard/follow-the-rabbit-the-matrix-meaning