Time Travel: Probability and Impossibility

Nikk Effingham

2020年2月 · Oxford University Press

电子书

256

页

符合条件

评分和评价未经验证了解详情

关于此电子书

There are various arguments for the metaphysical impossibility of time travel. Is it impossible because objects could then be in two places at once? Or is it impossible because some objects could bring about their own existence? In this book, Nikk Effingham contends that no such argument is sound and that time travel is metaphysically possible. His main focus is on the Grandfather Paradox: the position that time travel is impossible because someone could not go back in time and kill their own grandfather before he met their grandmother. In such a case, Effingham argues that the time traveller would have the ability to do the impossible (so they could kill their grandfather) even though those impossibilities will never come about (so they won't kill their grandfather). He then explores the ramifications of this view, discussing issues in probability and decision theory. The book ends by laying out the dangers of time travel and why, even though no time machines currently exist, we should pay extra special care ensuring that nothing, no matter how small or microscopic, ever travels in time.

作者简介

Nikk Effingham is Reader in Philosophy at the University of Birmingham. He received his doctorate from the University of Leeds and has previously worked at the University of Glasgow. His areas of research include metaphysics, philosophy of religion, and philosophy of science. Other than time travel, he has also written papers on supersubstantivalism, composition, and perdurantism.