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    Without distinguishing these co-present selves, enduranti... — Carmelics
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    Challenges→Endurantism can account for time travel

    Without distinguishing these co-present selves, endurantism cannot coherently represent the causal structure of the time traveler's personal history, as Lewis's 1976 analysis requires.

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    1 reason for
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    Reasons For

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    Reason for
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    • 1.Endurantism claims objects persist by being wholly present at each time; time travelers create temporal loops requiring distinct causally-efficacious stages.
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    • 2.Lewis's analysis demands tracking which stages cause which effects; without distinguishing co-present selves, causal order becomes indeterminate.
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    • 3.A single unified enduring self cannot simultaneously be both cause and effect in the same causal chain without violating standard causal asymmetry.
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    Reasons Against

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    • 1.Perdurantism (not endurantism) better handles time travel; endurantists can simply deny backwards causation rather than multiply selves.
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    • 2.Co-present selves aren't required—temporal indexing alone (being F-at-t1 vs F-at-t2) preserves causal distinctions within standard endurantism.
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    • 3.Lewis's own counterpart theory already provides causal structure without metaphysically distinct co-present selves in the same world.
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    Key Terms

    Co-present selves(time travel philosophy)
    Multiple versions of the same person existing at the same time, which would happen if someone traveled backward in time and met their younger self.
    Endurantism(Contrasted with views that posit temporal parts)
    The view that things are wholly present whenever they exist
    Lewis's 1976 analysis(philosophy of time and logic)
    A philosophical argument by David Lewis, a major 20th-century philosopher, presented in his 1976 work about how time travel is logically possible.
    Personal history(metaphysics of personal identity)
    The sequence of events, experiences, and changes that make up someone's life over time.
    causal structure(Paired with inertial structure as jointly sufficient to determine metrical structure.)
    The structure of the world defined by causal relations, operationalized here via light signals.

    Connections

    2 topics

    Modality & Possibility1 linkedPersonal Identity1 linked

    Related

    A single unified enduring self cannot simultaneously be both cause and effect in...Co-present selves aren't required—temporal indexing alone (being F-at-t1 vs F-at...Endurantism can account for time travelEndurantism claims objects persist by being wholly present at each time; time tr...
    +3 moreShow less
    Lewis's analysis demands tracking which stages cause which effects; without dist...Lewis's own counterpart theory already provides causal structure without metaphy...

    Details

    Type
    claim
    Perspectives
    2 (1 for, 1 against)
    Edits
    1 edit
    Perdurantism (not endurantism) better handles time travel; endurantists can simp...