Report on Analysis "problem" no. 18

Harrison, Jonathan

doi:10.1093/analys/40.2.65

Cited by 3 publications

(3 citation statements)

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“…67-73, pp. 116-143) [12,15,[141][142][143][144][145][146]. For instance, if I try to kill Hitler in 1930, I shall fail because, e.g., I slip on a banana peel.…”

Section: Logical Explanations For Disastersmentioning

confidence: 99%

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The Close Possibility of Time Travel

Effingham

2023

Philosophies

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This article discusses the possibility of some outlandish tropes from time travel fiction, such as people reversing in age as they time travel or the universe being destroyed because a time traveler kills their ancestor. First, I discuss what type of possibility we might have in mind, detailing ‘close possibility’ as one such candidate. Secondly, I argue that—with only little exception—these more outlandish tropes fail to be closely possible. Thirdly, I discuss whether these outlandish tropes may nevertheless be more broadly possible (e.g., metaphysically or logically possible), arguing that whether they are or not depends upon your favored metaphysics of the laws of nature.

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“…67-73, pp. 116-143) [12,15,[141][142][143][144][145][146]. For instance, if I try to kill Hitler in 1930, I shall fail because, e.g., I slip on a banana peel.…”

Section: Logical Explanations For Disastersmentioning

confidence: 99%

“…1 Figure 1 assumes that physically possible worlds are all metaphysically possible, contrary to arguments I have made elsewhere [18] (pp. [128][129][130][131][132][133][134][135][136][137][138][139][140][141][142][143]. Since that issue is irrelevant to this paper, I ignore it entirely.…”

Section: Notesmentioning

confidence: 99%

The Close Possibility of Time Travel

Effingham

2023

Philosophies

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“…In particular, when thermodynamics is included in the analysis, the loop of a self-existing objects becomes inconsistent because, due to entropic degradation, the final and initial states of the object do not match. Moreover, even more strange paradoxes, related to human self-reproduction like the amazing Jocasta paradox (Harrison 1979), can be proven to be nonconsistent when the laws of genetics are taken into account.…”

Section: Principle Of Self-consistencymentioning

confidence: 99%

Self-Existing Objects and Auto-Generated Information in Chronology-Violating Space–times: A Philosophical Discussion

Romero

Torres

2001

Mod. Phys. Lett. A

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Closed time-like curves naturally appear in a variety of chronology-violating space-times. In these space-times, the Principle of Self-Consistency demands an harmony between local and global affairs that excludes grandfather-like paradoxes. However, self-existing objects trapped in CTCs are not seemingly avoided by the standard interpretation of this principle, usually constrained to a dynamical framework. In this paper we discuss whether we are committed to accept an ontology with self-existing objects if CTCs actually occur in the universe. In addition, the epistemological status of the Principle of SelfConsistency is analyzed and a discussion on the information flux through CTCs is presented.

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No End in Sight: Causal Loops in Philosophy, Physics and Fiction

Hanley¹

2004

Synthese

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Report on Analysis "problem" no. 18

Cited by 3 publications

References 0 publications

The Close Possibility of Time Travel

The Close Possibility of Time Travel

Self-Existing Objects and Auto-Generated Information in Chronology-Violating Space–times: A Philosophical Discussion

No End in Sight: Causal Loops in Philosophy, Physics and Fiction

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