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Added Greg Egan's Orthogonal to popular culture section. |
→Time-loop logic: added new critical article on Deutsch time loop condition |
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| doi = 10.1007/s00220-017-2943-5
}}</ref>
In a later article,<ref>{{cite journal
| last1 = Tolksdorf
| first1 = Juergen
| authorlink1 =
| last2 = Verch
| first2 = Rainer
| authorlink2 =
|date=2021
| title = The D-CTC condition is generically fulfilled in classical (non-quantum) statistical systems
| journal = Foundations of Physics
| volume = 51
| issue = 93
| series =
| pages =
| arxiv = 1912.02301
| bibcode =
| doi = 10.1007/s10701-021-00496-z
}}</ref>
the same authors have shown that Deutsch's CTC fixed point condition can also be fulfilled in any system
subject to the laws of classical [[statistical mechanics]], even if it is not built up by quantum systems. The authors conclude that hence,
Deutsch's condition is not specific to quantum physics, nor does it depend on the quantum nature of a physical system so that it can be fulfilled.
In consequence, Tolksdorf and Verch further conclude that Deutsch's condition isn't sufficiently specific to allow statements about time travel scenarios or their hypothetical realization by quantum physics, and that Deutsch's attempt to explain the possibility of his proposed time-travel scenario using the many-world interpretation of quantum mechanics is misleading.
== In popular culture ==
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