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  1. On the Existence of “Time Machines” in General Relativity.John Manchak - 2009 - Philosophy of Science 76 (5):1020-1026.
    Within the context of general relativity, we consider one definition of a “time machine” proposed by Earman, Smeenk, and Wüthrich. They conjecture that, under their definition, the class of time machine spacetimes is not empty. Here, we prove this conjecture. †To contact the author, please write to: Department of Philosophy, University of Washington, Box 353350, Seattle, WA 98195‐3350; e‐mail: manchak@uw.edu.
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  • In Search of Relativistic Time.Marc Lachièze-Rey - 2014 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 46 (1):38-47.
    This paper explores the status of some notions which are usually associated to time, like datations, chronology, durations, causality, cosmic time and time functions in the Einsteinian relativistic theories. It shows how, even if some of these notions do exist in the theory or for some particular solution of it, they appear usually in mutual conflict: they cannot be synthesized coherently, and this is interpreted as the impossibility to construct a common entity which could be called time. This contrasts with (...)
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  • Don Ross, James Ladyman, and Harold Kincaid: Scientific Metaphysics. [REVIEW]Cord Friebe - 2014 - Journal for General Philosophy of Science / Zeitschrift für Allgemeine Wissenschaftstheorie 45 (2):387-391.
    Scientific Metaphysics is a collection of essays in which prominent philosophers of science explore how metaphysics looks like that is judged by scientific standards. Common to all chapters is the requirement that scientific results and methods should be applied to metaphysical puzzle solving and, hence, the skepticism about philosophical reasoning that is based on the analysis of common-sense concepts and appeals to intuitions and a priori knowledge. It is, however, controversial what exactly naturalistic metaphysics might be, since at present there (...)
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  • Time Machines.John Byron Manchak - 2014 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 48 (2):124-127.
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  • Presentism and Black Holes.Geurt Sengers - 2017 - European Journal for Philosophy of Science 7 (1):1-15.
    In a recent publication in the European Journal for Philosophy of Science, Romero and Pérez claim to reveal new trouble for the already difficult life of presentism in relativistic spacetimes. Their argument purports to demonstrate the impossibility of postulating a viable present in the presence of black holes, in particular the Schwarzschild geometries. I argue that their argument is flawed, and that the Schwarzschild geometries they consider offer no novel threats to presentism. However, if we consider more general black holes, (...)
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  • No No-Go: A Remark on Time Machines.John Byron Manchak - 2011 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 42 (1):74-76.
    We present a counterexample to Krasnikov's much discussed time machine no-go result. In addition, we prove a positive statement: a time machine existence theorem under a modest "no holes" assumption.
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  • Let's Do Black Holes and Time Warps Again: The Future of Spacetime. [REVIEW]Chris Smeenk - 2003 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 34 (4):680-683.
    Book Review of The Future of Spacetime, by Stephen Hawking et al.
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  • In Search of Relativistic Time.Marc Lachièze-Rey - 2014 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 46 (1):38-47.
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  • Twins' Paradox and Closed Timelike Curves: The Role of Proper Time and the Presentist View on Spacetime. [REVIEW]Cord Friebe - 2012 - Journal for General Philosophy of Science / Zeitschrift für Allgemeine Wissenschaftstheorie 43 (2):313-326.
    Relativity allegedly contradicts presentism, the dynamic view of time and reality, according to which temporal passage is conceived of as an existentially distinguished ‘moving’ now. Against this common belief, the paper motivates a presentist interpretation of spacetime: It is argued that the fundamental concept of time—proper time—cannot be characterized by the earlier-later relation, i.e., not in the B-theoretical sense. Only the presentist can provide a temporal understanding of the twins’ paradox and of universes with closed timelike curves.
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