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A comment on A Student Just Proved Paradox-Free Time Travel Is Possible.

Re:A Student Just Proved Paradox-Free Time Travel Is Possible by ycombi42 on Friday September 25, 2020 @06:05PM (#24594597)
This reminds me of the sci-fi short story in the book “Exhalation” called: “The Merchant and the Alchemist’s Gate”.
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