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arXiv:1312.7128physics.pop-ph

Searching the Internet for evidence of time travelers

Robert J. Nemiroff, Teresa Wilson

Abstract

Time travel has captured the public imagination for much of the past century, but little has been done to actually search for time travelers. Here, three implementations of Internet searches for time travelers are described, all seeking a prescient mention of information not previously available. The first search covered prescient content placed on the Internet, highlighted by a comprehensive search for specific terms in tweets on Twitter. The second search examined prescient inquiries submitted to a search engine, highlighted by a comprehensive search for specific search terms submitted to a popular astronomy web site. The third search involved a request for a direct Internet communication, either by email or tweet, pre-dating to the time of the inquiry. Given practical verifiability concerns, only time travelers from the future were investigated. No time travelers were discovered. Although these negative results do not disprove time travel, given the great reach of the Internet, this search is perhaps the most comprehensive to date.

arXiv comments
11 pages, comments welcome
Journal reference
DOI
Subjects
physics.pop-phPopular Physics cs.CYComputers and Society

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Linked by 4 identifiable commenters in 4 comments across 4 threads, from Jan 2014 to May 2025. Found in 6 HN submissions from Jan 2014 to Sep 2022. Open submission discussions.

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Discussed in comments4 threads

    • Reminds me of that paper about searching for time travellers on the internet: https://arxiv.org/abs/1312.7128 Unfortunately, the internet is filled with ARGs and pranks. You can't really trust a "message in a bottle" kind of communication, it's likely to get lost. Considering…

      alganetView on HNParent context

    • One fun way to almost-disprove time travel (so far) is that there is no evidence that anyone is doing google searches for things they could not have known beforehand: https://arxiv.org/abs/1312.7128

      tunesmithView on HNParent context

  1. [dead] 1 comment
    • Previous Discussion: https://news.ycombinator.com/item?id=6998936 Searching the Internet for evidence of time travelers (http://arxiv.org/abs/1312.7128) 200 points by ColinWright 12 months ago 155 comments

      jcrView on HNParent context

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