chelsi
Uploaded by
11 SLIDES
300 VIEWS
110LIKES

Exploring the Grandfather Paradox: Implications of Time Travel on Causality

DESCRIPTION

This analysis delves into the philosophical implications of the Grandfather Paradox and related concepts of time travel, asserting that if time travel were possible, one could engage in actions like "grampatricide" before one’s father is conceived. The discussion also touches on retro-suicide and changing the past, concluding that such actions are logically impossible. Through examining the Law of Non-Contradiction and the Change Principle, we explore the limitations of time travel and its paradoxical nature, ultimately arguing that time travel cannot exist within our understanding of causality.

1 / 11

Download Presentation

Exploring the Grandfather Paradox: Implications of Time Travel on Causality

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

Playing audio...

  1. time travel the grandfather paradox i

  2. If time travel is possible, then one can commit grampatricide before one’s father is conceived. • One cannot commit grampatricide before one’s father is conceived. • [So] Time travel is not possible. the grandfather paradox

  3. If time travel is possible, then one can commit retro-suicide. • One cannot commit retro-suicide. • [So] Time travel is not possible. the retro-suicide paradox

  4. If time travel is possible, then one can change the past. • One cannot change the past. • [So] Time travel is not possible. the altered past paradox

  5. The Law of Non-Contradiction: For any proposition P, it is not the case that (P & not-P). the altered past paradox

  6. The Change Principle: Necessarily, for any X, X changes only if there is some property P such that one of X’s temporal parts has P and one of X’s temporal parts lacks P. the altered past paradox

  7. If time travel is possible, then one can change the past. • One cannot change the past. • [So] Time travel is not possible. the altered past paradox

  8. Tim can kill Grandfather. • Tim cannot kill Grandfather. lewis’s puzzle

  9. The Compossibility Principle: A sentence of the form “A can X” is true in context C iffA’s Xing is compossible with the facts that are relevant in context C. lewis’s puzzle

  10. Tim can kill Grandfather. • Tim cannot kill Grandfather. lewis’s puzzle

  11. Tim’s killing Grandfather is compossible with the R facts. • Tim’s killing Grandfather is not compossible with the R+ facts. lewis’s puzzle

More Related