Search results for 'Time Travel paradoxes' (try it on Scholar)

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  1. Peter Eldridge-Smith (2007). Paradoxes and Hypodoxes of Time Travel. In Jan Lloyd Jones, Paul Campbell & Peter Wylie (eds.), Art and Time. Australian Scholarly Publishing. 172--189.score: 540.0
    I distinguish paradoxes and hypodoxes among the conundrums of time travel. I introduce ‘hypodoxes’ as a term for seemingly consistent conundrums that seem to be related to various paradoxes, as the Truth-teller is related to the Liar. In this article, I briefly compare paradoxes and hypodoxes of time travel with Liar paradoxes and Truth-teller hypodoxes. I also discuss Lewis’ treatment of time travel paradoxes, which I characterise as a Laissez (...)
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  2. Ken Perszyk, Nicholas J. J. Smith & Hamish Campbell, The Paradoxes of Time Travel.score: 303.0
    Humans have long been fascinated by the idea of visiting the past and of seeing what the future will bring. Time travel has been one of the most popular themes of science fiction. Most people have seen the TV series ‘Dr Who’ or ‘Quantum Leap’ or ‘Star Trek’. You’ve probably seen one of the ‘Back to the Future’ or ‘Terminator’ movies, or ‘Twelve Monkeys’. Time travel narratives provide fascinating plots, which exercise our imaginations in ever so (...)
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  3. Paul Horwich (1975). On Some Alleged Paradoxes of Time Travel. Journal of Philosophy 72 (14):432-444.score: 261.0
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  4. David Lewis (1976). The Paradoxes of Time Travel. American Philosophical Quarterly 13 (2):145-152.score: 261.0
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  5. John Abbruzzese (2001). On Using the Multiverse to Avoid the Paradoxes of Time Travel. Analysis 61 (1):36–38.score: 261.0
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  6. Might All Normativity Be Queer, Metaphysical Indeterminacy & Time Travel (2010). Australasian Journal of Philosophy Contents of Volume 88. Australasian Journal of Philosophy 88 (4).score: 240.0
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  7. Chris Smeenk & Christian Wuthrich (2011). Time Travel and Time Machines. In Craig Callender (ed.), The Oxford Handbook of Philosophy of Time. Oxford University Press.score: 222.0
    This paper is an enquiry into the logical, metaphysical, and physical possibility of time travel understood in the sense of the existence of closed worldlines that can be traced out by physical objects. We argue that none of the purported paradoxes rule out time travel either on grounds of logic or metaphysics. More relevantly, modern spacetime theories such as general relativity seem to permit models that feature closed worldlines. We discuss, in the context of Gödel's (...)
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  8. Gerald Keaney (2013). The Von Lessing Equipment. Philosofict (1): Free Online.score: 222.0
    A philosophical time travel story in which assassins from the near future are sent back to kill dissidents.
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  9. Tim Maudlin (1990). Time-Travel and Topology. PSA: Proceedings of the Biennial Meeting of the Philosophy of Science Association 1990:303 - 315.score: 213.0
    This paper demonstrates that John Wheeler and Richard Feynman's strategy for avoiding causal paradoxes threatened by backward causation and time-travel can be defeated by designing self-interacting mechanisms with a non-simple topological structure. Time-travel therefore requires constraints on the allowable data on space-like hypersurfaces. The nature and significance of these constraints is discussed.
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  10. Alasdair Richmond (2008). Tom Baker: His Part in My Downfall. (A Philosopher's Guide to Time-Travel.). Think 7 (19):35-46.score: 213.0
    Alasdair Richmond introduces some famous paradoxes about time travel.
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  11. David Wittenberg (2013). Time Travel: The Popular Philosophy of Narrative. Fordham University Press.score: 211.0
    Introduction: Time travel and the mechanics of narrative -- Macrological fictions: evolutionary utopia and time travel (1887-1905) -- Historical interval I: the first time travel story -- Relativity, psychology, paradox: Wertenbaker to Heinlein (1923-1941) -- Historical interval II: three phases of time travel--the time machine -- The big time: multiple worlds, narrative viewpoint, and superspace -- Paradox and paratext: picturing narrative theory -- Theoretical interval: the primacy of the visual in (...)
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  12. Jiri Benovsky (2011). Endurance and Time Travel. Kriterion 24:65-72.score: 211.0
    Suppose that you travel back in time to talk to your younger self in order to tell her that she (you) should have done some things in her (your) life differently. Of course, you will not be able to make this plan work, we know that from the many versions of 'the grandfather paradox' that populate the philosophical literature about time travel. What will be my centre of interest in this paper is the conversation between you (...)
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  13. Joel Hunter, Time Travel. Internet Encyclopedia of Philosophy.score: 193.3
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  14. Peter B. M. Vranas (2009). Can I Kill My Younger Self? Time Travel and the Retrosuicide Paradox. Pacific Philosophical Quarterly 90 (4):520-534.score: 190.7
    If (backward) time travel is possible, presumably so is my shooting my younger self (YS); then apparently I can kill him – I can commit retrosuicide . But if I were to kill him I would not exist to shoot him, so how can I kill him? The standard solution to this paradox understands ability as compossibility with the relevant facts and points to an equivocation about which facts are relevant: my killing YS is compossible with his proximity (...)
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  15. Douglas Kutach (2013). Time Travel and Time Machines. In Adrian Bardon & Heather Dyke (eds.), A Companion to the Philosophy of Time. Blackwell.score: 174.0
    Thinking about time travel is an entertaining way to explore how to understand time and its location in the broad conceptual landscape that includes causation, fate, action, possibility, experience, and reality. It is uncontroversial that time travel towards the future exists, and time travel to the past is generally recognized as permitted by Einstein’s general theory of relativity, though no one knows yet whether nature truly allows it. Coherent time travel stories (...)
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  16. Steven D. Hales (2010). No Time Travel for Presentists. Logos and Episteme 1 (2):353-360.score: 168.0
    In the present paper, I offer a new argument to show that presentism about time is incompatible with time travel. Time travel requires leaving the present, which, under presentism, contains all of reality. Therefore to leave the present moment is to leave reality entirely; i.e. to go out of existence. Presentist “time travel” is therefore best seen as a form of suicide, not as a mode of transportation. Eternalists about time do not (...)
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  17. Thomas Suddendorf & Michael C. Corballis (2007). The Evolution of Foresight: What is Mental Time Travel, and is It Unique to Humans? Behavioral and Brain Sciences 30 (3):299-313.score: 168.0
    In a dynamic world, mechanisms allowing prediction of future situations can provide a selective advantage. We suggest that memory systems differ in the degree of flexibility they offer for anticipatory behavior and put forward a corresponding taxonomy of prospection. The adaptive advantage of any memory system can only lie in what it contributes for future survival. The most flexible is episodic memory, which we suggest is part of a more general faculty of mental time travel that allows us (...)
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  18. C. K. Raju (2006). Time Travel and the Reality of Spontaneity. Foundations of Physics 36 (7):1099-1113.score: 168.0
    Contrary to the informed consensus, time travel implies spontaneity (as distinct from chance) so that time travel can only be of the second kind.
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  19. Philip Gerrans (2007). Mental Time Travel, Somatic Markers and "Myopia for the Future". Synthese 159 (3):459 - 474.score: 168.0
    Patients with damage to the ventromedial prefrontal cortex (VMPFC) are often described as having impaired ability for planning and decision making despite retaining intact capacities for explicit reasoning. The somatic marker hypothesis is that the VMPFC associates implicitly represented affective information with explicit representations of actions or outcomes. Consequently, when the VMPFC is damaged explicit reasoning is no longer scaffolded by affective information, leading to characteristic deficits. These deficits are exemplified in performance on the Iowa Gambling Task (IGT) in which (...)
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  20. Paul R. Daniels (2012). Back to the Present: Defending Presentist Time Travel. Disputatio 4 (33):469 - 484.score: 168.0
    Here I defend the compatibility of presentism and time travel against a few objections. Keller and Nelson argue that, if presentism is at all plausible, presentism and time travel are as compatible as eternalism and time travel. But Miller and Sider are not convinced. I reply that for their concerns to have merit, Miller and Sider must assume presentists are committed to positions they need not be; I explain why presentists are not so committed (...)
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  21. Heather Dyke (2005). The Metaphysics and Epistemology of Time Travel. Think 9 (9):43-52.score: 168.0
    This paper examines various philosophical arguments to do with time travel. It argues that time travel has not been shown to be logically impossible. It then considers whether time travel would give rise to improbable strings of coincidences, or closed causal loops. Finally, it considers whether we could ever be justified in believing someone who claimed to be a time traveller, or whether we would always be more justified in believing that the claimant (...)
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  22. Kristie Miller (2005). Time Travel and the Open Future. Disputatio 1 (19):223 - 232.score: 168.0
    I argue that the thesis that time travel is logically possible, is inconsistent with the necessary truth of any of the usual �open future-objective present� models of the universe. It has been relatively uncontroversial until recently to hold that presentism is inconsistent with the possibility of time travel. I argue that recent arguments to the contrary do not show that presentism is consistent with time travel. Moreover, the necessary truth of other open future-objective present (...)
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  23. Alasdair M. Richmond (2013). Hilbert's Inferno: Time Travel for the Damned. Ratio 26 (3):233-249.score: 168.0
    Combining time travel with certain kinds of supertask, this paper proposes a novel model for Hell. Temporally-closed spacetimes allow otherwise impossible opportunities for material kinds of damnation and reveal surprising limitations on metaphysical objections to Hell. Prima facie, eternal damnation requires either infinite amounts of time or time for the damned to speed-up arbitrarily. However, spatiotemporally finite ‘time travel’ universes can host unending personal torment for infinitely many physical beings, while keeping fixed finite limits (...)
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  24. Erick Carlson (2005). A New Time Travel Paradox Resolved. Philosophia 33 (1-4):263-273.score: 146.0
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  25. William Grey (1999). Troubles with Time Travel. Philosophy 74 (1):55-70.score: 145.7
    Talk about time travel is puzzling even if it isn't obviously contradictory. Philosophers however are divided about whether time travel involves empirical paradox or some deeper metaphysical incoherence. It is suggested that time travel requires a Parmenidean four-dimensionalist metaphysical conception of the world in time. The possibility of time travel is addressed (mainly) from within a Parmenidean metaphysical framework, which is accepted by David Lewis in his defence of the coherence of (...)
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  26. Phil Dowe (2000). The Case for Time Travel. Philosophy 75 (3):441-451.score: 145.7
    This idea of time travel has long given philosophers difficulties. Most recently, in his paper ‘Troubles with Time Travel’ William Grey presents a number of objections to time travel, some well known in the philosophical literature, others quite novel. In particular Grey's ‘no destinations’ and ‘double occupation’ objections I take to be original, while what I will call the ‘times paradox’ and the ‘possibility restriction argument’ are versions of well known objections. I show how (...)
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  27. Frank Arntzenius, Time Travel and Modern Physics. Stanford Encyclopedia of Philosophy.score: 145.7
    Time travel has been a staple of science fiction. With the advent of general relativity it has been entertained by serious physicists. But, especially in the philosophy literature, there have been arguments that time travel is inherently paradoxical. The most famous paradox is the grandfather paradox: you travel back in time and kill your grandfather, thereby preventing your own existence. To avoid inconsistency some circumstance will have to occur which makes you fail in this (...)
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  28. Hans Moravec, Time Travel and Computing.score: 145.7
    The last few years have been good for time machines. Kip Thorne's renowned general relativity group at Caltech invented a new quantum gravitational approach to building a time gate, and, in an international collaboration, gave a plausible rebuttal of "grandfather paradox" arguments against time travel. Another respected group suggested time machines that exploit quantum mechanical time uncertainty. The technical requirements for these suggestions exceed our present capabilities, but each new approach seems less onerous than (...)
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  29. Helmut Tributsch (2006). Quantum Paradoxes, Time, and Derivation of Thermodynamic Law: Opportunities From Change of Energy Paradigm. [REVIEW] Journal for General Philosophy of Science 37 (2):287 - 306.score: 144.0
    Well known quantum and time paradoxes, and the difficulty to derive the second law of thermodynamics, are proposed to be the result of our historically grown paradigm for energy: it is just there, the capacity to do work, not directly related to change. When the asymmetric nature of energy is considered, as well as the involvement of energy turnover in any change, so that energy can be understood as fundamentally "dynamic", and time-oriented (new paradigm), these paradoxes (...)
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  30. Peter J. Riggs (1997). The Principal Paradox of Time Travel. Ratio 10 (1):48–64.score: 143.0
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  31. Timothy Chambers (1999). Time Travel: How Not to Defuse the Principal Paradox. Ratio 12 (3):296–301.score: 143.0
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  32. Dennis Charles Holt (1981). Time Travel: The Time Discrepancy Paradox. Philosophical Investigations 4 (4):1-16.score: 143.0
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  33. Michael C. Corballis (2013). Wandering Tales: Evolutionary Origins of Mental Time Travel and Language. Frontiers in Psychology 4.score: 140.0
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  34. Marie D. Jones (2012). This Book is From the Future: A Journey Through Portals, Relativity, Worm Holes, and Other Adventures in Time Travel. New Page Books.score: 140.0
     
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  35. Daisuke Kachi (2007). Do Time Travelers Suffer From Paradoxes? Annals of the Japan Association for Philosophy of Science 15 (2):95-98.score: 135.0
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  36. Tobias Hansson Wahlberg (2009). Endurance Per Se in B-Time. Metaphysica 10 (2):175-183.score: 132.3
    Three arguments for the conclusion that objects cannot endure in B-time even if they remain intrinsically unchanged are examined: Carter and Hestevolds enduring-objects-as-universals argument (American Philosophical Quarterly 31(4):269-283, 1994) and Barker and Dowe's paradox 1 and paradox 2 (Analysis 63(2):106-114, 2003, Analysis 65(1):69-74, 2005). All three are shown to fail.
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  37. Bradley Harris Dowden (2009). The Metaphysics of Time: A Dialogue. Rowman & Littlefield.score: 132.0
    Introduction -- Fatalism, free will, and foreknowledge -- Mind, the metric, and conventionality -- Time travel and backward causation -- Time's origin, and relationism vs. substantivalism -- McTaggart, tensed facts, and time's flow -- Presentism, the block universe, and perduring objects -- The arrow of time -- Zeno's paradoxes and supertasks.
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  38. Peter B. M. Vranas (2010). What Time Travelers May Be Able to Do. Philosophical Studies 150 (1):115 - 121.score: 124.0
    Kadri Vihvelin, in "What time travelers cannot do" (Philos Stud 81: 315-330, 1996), argued that "no time traveler can kill the baby who in fact is her younger self, because (V1) "if someone would fail to do something, no matter how hard or how many times she tried, then she cannot do it", and (V2) if a time traveler tried to kill her baby self, she would always fail. Theodore Sider (Philos Stud 110: 115-138, 2002) criticized Vihvelin's (...)
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  39. Joshua Spencer (2013). What Time Travelers Cannot Not Do (but Are Responsible for Anyway). Philosophical Studies 166 (1):149-162.score: 124.0
    The Principle of Alternative Possibilities is the intuitive idea that someone is morally responsible for an action only if she could have done otherwise. Harry Frankfurt has famously presented putative counterexamples to this intuitive principle. In this paper, I formulate a simple version of the Principle of Alternative Possibilities that invokes a course-grained notion of actions. After warming up with a Frankfurt-Style Counterexample to this principle, I introduce a new kind of counterexample based on the possibility of time (...). At the end of the paper, I formulate a more sophisticated version of the Principle of Alternative Possibilities that invokes a certain fine grained notion of actions. I then explain how this new kind of counterexample can be augmented to show that even the more sophisticated principle is false. (shrink)
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  40. Bradley Dowden, Time. Internet Encyclopedia of Philosophy.score: 123.3
    Time Time is what clocks measure. The three key features of time are that it orders events in sequence one after the other; it specifies how long any event lasts; and it specifies when events occur. Yet despite 2,500 years of investigating time, many issues about it are unresolved. Here is a list of the […].
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  41. Theodore Sider (2001). Four Dimensionalism: An Ontology of Persistence and Time. Oxford University Press.score: 114.0
    Four-Dimensionalism defends the thesis that the material world is composed of temporal as well as spatial parts. This defense includes a novel account of persistence over time, new arguments in favour of the four-dimensional ontology, and responses to the challenges four-dimensionalism faces." "Theodore Sider pays particular attention to the philosophy of time, including a strong series of arguments against presentism, the thesis that only the present is real. Arguments offered in favour of four-dimensionalism include novel arguments based on (...)
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  42. Nikk Effingham (2012). An Unwelcome Consequence of the Multiverse Thesis. Synthese 184 (3):375 - 386.score: 113.0
    The Multiverse Thesis is a proposed solution to the Grandfather Paradox. It is popular and well promulgated, found in fiction, philosophy and (most importantly) physics. I first offer a short explanation on behalf of its advocates as to why it qualifies as a theory of time travel (as opposed to mere 'universe hopping'). Then I argue that the thesis nevertheless has an unwelcome consequence: that extended objects cannot travel in time. Whilst this does not demonstrate that (...)
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  43. Theodore Sider (2002). Time Travel, Coincidences and Counterfactuals. Philosophical Studies 110 (2):115 - 138.score: 112.0
    In no possible world does a time traveler succeed in killing herearlier self before she ever enters a time machine. So if many,many time travelers went back in time trying to kill theirunprotected former selves, the time travelers would fail inmany strange, coincidental ways, slipping on bananapeels, killing the wrong victim, and so on. Such cases producedoubts about time travel. How could ``coincidences'' beguaranteed to happen? And wouldn't the certainty of coincidentalfailure imply that (...)
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  44. Phil Dowe (2003). The Coincidences of Time Travel. Philosophy of Science 70 (3):574-589.score: 112.0
    In this paper I consider two objections raised by Nick Smith (1997) to an argument against the probability of time travel given by Paul Horwich (1995, 1987). Horwich argues that time travel leads to inexplicable and improbable coincidences. I argue that one of Smith's objections fails, but that another is correct. I also consider an instructive way to defend Horwich's argument against the second of Smith's objections, but show that it too fails. I conclude that unless (...)
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  45. Nicholas J. J. Smith (1997). Bananas Enough for Time Travel? British Journal for the Philosophy of Science 48 (3):363-389.score: 112.0
    This paper argues that the most famous objection to backward time travel can carry no weight. In its classic form, the objection is that backward time travel entails the occurrence of impossible things, such as auto-infanticide—and hence is itself impossible. David Lewis has rebutted the classic version of the objection: auto-infanticide is prevented by coincidences, such as time travellers slipping on banana peels as they attempt to murder their younger selves. I focus on Paul Horwich‘s (...)
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  46. Cody Gilmore (2007). Time Travel, Coinciding Objects, and Persistence. In Dean Zimmerman (ed.), Oxford Studies in Metaphysics, vol. 3. Clarendon Press. 177-198.score: 112.0
    Existing puzzles about coinciding objects can be divided into two types, corresponding to the manner in which they bear upon the endurantism v. perdurantism debate. (Endurantism is the view that material objects lack temporal extent and persist through time by being wholly present at each moment of their careers. Perdurantism is the opposing view that material objects persist by being temporally extended and having different temporal parts located at different times.) Puzzles of the first type, which involve (...)
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  47. Bradley Monton (2007). Time Travel Without Causal Loops. Philosophical Quarterly 59 (234):54-67.score: 112.0
    I argue that time travel can occur without causal loops.
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  48. David B. Malament (1984). "Time Travel" in the Godel Universe. PSA: Proceedings of the Biennial Meeting of the Philosophy of Science Association 1984:91 - 100.score: 112.0
    The paper first tries to explain how the possibility of "time travel" arises in the Godel universe. It then goes on to discuss a technical problem conerning minimal acceleration requirements for time travel. A theorem is stated and a conjecture posed. If the latter is correct, time travel can be ruled out as a practical possibility in the Godel universe.
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  49. John G. Cramer, Quantum Time Travel.score: 112.0
    The territory of time travel has, from the days of H. G. Wells to the mid-1980's, been the exclusive province of writers of science fiction and fantasy. SF critics have even argued that time travel stories are so scientifically unlikely that they should be considered fantasy, not science fiction.
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  50. Rupert Read (2011). Why There Cannot Be Any Such Thing as “Time Travel”. Philosophical Investigations 35 (2):138-153.score: 112.0
    Extending work of Wittgenstein, Lakoff and Johnson I suggest that it is the (spatial) metaphors we rely on in order to conceptualise time that provide an illusory space for time-travel-talk. For example, in the “Moving Time” spatialisation of time, “objects” move past the agent from the future to the past. The objects all move in the same direction – this is mapped to time always moving in the same direction. But then it is easy (...)
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