Troubles with time travel

Philosophy 74 (1):55-70 (1999)
Abstract
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 time travel. It is argued that time travel raises formidable difficulties which are not satisfactorily resolved by Lewis's ingenious defence of time travel. Objections to time travel considered include: (1) travel to other times is impossible because there is nowhere (or “nowhen”) to go to; (2) the problem that upon setting out on a journey to the past a time machine will collide with itself; (3) time travel generates a mysterious temporal dualism between experiential time and physical time; (4) travel to the past permits reverse causation, raising the possibility of causal loops and attendant problems arising, for example, from the prospect of empirical contradiction and the possibility of someone being one of their ancestors
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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.
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.
John Earman (1967). On Going Backward in Time. Philosophy of Science 34 (3):211-222.
Kurt Stocker (2012). The Time Machine in Our Mind. Cognitive Science 36 (3):385-420.
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