{"title":"Time Travel and Collisions","authors":"C. Maslen","doi":"10.1515/mp-2023-0020","DOIUrl":null,"url":null,"abstract":"Abstract This paper focuses on problems for time travel that specifically concern continuous time-travel to the past, problems to do with potential collisions with past obstacles such as former time-slices of the time traveler herself. These problems have not been discussed nearly as much as other questions about time travel, such as the Grandfather Paradox. Here I focus on discussions by Bernstein, Dowe, Grey and Le Poidevin. After examination, I conclude that only the problems of turning around in time have any merit and present a new proposal of my own for turning around in time without collisions. I assume a Lewisian framework throughout.","PeriodicalId":43147,"journal":{"name":"Metaphysica-International Journal for Ontology & Metaphysics","volume":" ","pages":""},"PeriodicalIF":0.2000,"publicationDate":"2023-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Metaphysica-International Journal for Ontology & Metaphysics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1515/mp-2023-0020","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"0","JCRName":"PHILOSOPHY","Score":null,"Total":0}
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Abstract
Abstract This paper focuses on problems for time travel that specifically concern continuous time-travel to the past, problems to do with potential collisions with past obstacles such as former time-slices of the time traveler herself. These problems have not been discussed nearly as much as other questions about time travel, such as the Grandfather Paradox. Here I focus on discussions by Bernstein, Dowe, Grey and Le Poidevin. After examination, I conclude that only the problems of turning around in time have any merit and present a new proposal of my own for turning around in time without collisions. I assume a Lewisian framework throughout.
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