Time travel: a critical review

Preprint. A critical review of the time-travel program: chronology protection, constructive machines, the quantum stress computations, the relic searches, and the acquisition and engineering ledger. Published on LibertAI Labs: https://labs.libertai.io/papers/review/. First public timestamp: 2026-10-27T16:15:00Z (UTC). SHA-256 of the PDF: 245a0fab580dcf5d12f26ed408fc2cf6c7d634eefd9c78608401f9ebff7e9a1a. v1.1: sync companion papers to Zenodo DOIs/status; replace 2D "exactly zero" wording with horizon-shift/state-constraint statement; add standard funding, competing-interests, acknowledgments and data/code statements; no scientific changes to the review results.

Authors

Publication Details

Journal
Zenodo (CERN European Organization for Nuclear Research)
Published
2026-10-27
DOI
https://doi.org/10.5281/zenodo.23696357
Citations
1
Primary Topic
Relativity and Gravitational Theory
Type
preprint
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preprint

Time travel: a critical review

Jonathan Schemoul
1 citations
Zenodo (CERN European Organization for Nuclear Research)
Relativity and Gravitational Theory
preprint

Time travel: a critical review

Jonathan Schemoul
preprint en
1 citations

Abstract

Preprint. A critical review of the time-travel program: chronology protection, constructive machines, the quantum stress computations, the relic searches, and the acquisition and engineering ledger. Published on LibertAI Labs: https://labs.libertai.io/papers/review/. First public timestamp: 2026-10-27T16:15:00Z (UTC). SHA-256 of the PDF: 245a0fab580dcf5d12f26ed408fc2cf6c7d634eefd9c78608401f9ebff7e9a1a. v1.1: sync companion papers to Zenodo DOIs/status; replace 2D "exactly zero" wording with horizon-shift/state-constraint statement; add standard funding, competing-interests, acknowledgments and data/code statements; no scientific changes to the review results.

Zenodo (CERN European Organization for Nuclear Research)
Relativity and Gravitational Theory
DOIOpen Access PDFOpenAlex
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Time travel: a critical review — Jonathan Schemoul · Zenodo (CERN European Organization for Nuclear Research) (2026) | TGRS Research Map | TGRS