{"id":138758,"date":"2022-04-27T19:02:39","date_gmt":"2022-04-28T00:02:39","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2022\/04\/theres-one-way-time-travel-could-be-possible-according-to-this-physicist"},"modified":"2022-04-27T19:02:39","modified_gmt":"2022-04-28T00:02:39","slug":"theres-one-way-time-travel-could-be-possible-according-to-this-physicist","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2022\/04\/theres-one-way-time-travel-could-be-possible-according-to-this-physicist","title":{"rendered":"There\u2019s One Way Time Travel Could Be Possible, According to This Physicist"},"content":{"rendered":"<p><\/p>\n<p><iframe style=\"display: block; margin: 0 auto; width: 100%; aspect-ratio: 4\/3; object-fit: contain;\" src=\"https:\/\/www.youtube.com\/embed\/uQSoaiubuA0?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope;\n   picture-in-picture\" allowfullscreen><\/iframe><\/p>\n<p>Have you ever made a mistake that you wish you could undo? Correcting past mistakes is one of the reasons we find the concept of time travel so fascinating. As often portrayed in science fiction, with a time machine, nothing is permanent anymore \u2013 you can always go back and change it. But <a href=\"https:\/\/doi.org\/10.21468\/SciPostPhysLectNotes.10\">is time travel really possible in our universe<\/a>, or is it just science fiction?<\/p>\n<p>Our modern understanding of time and causality comes from <a href=\"https:\/\/dx.doi.org\/10.1007\/978-3-319-55182-1\">general relativity<\/a>. Theoretical physicist Albert Einstein\u2019s theory combines space and time into a single entity \u2013 \u201cspacetime\u201d \u2013 and provides a remarkably intricate explanation of how they both work, at a level unmatched by any other established theory.<\/p>\n<p>This theory has existed for more than 100 years, and has been experimentally verified to extremely high precision, so physicists are fairly certain it provides an accurate description of the causal structure of our Universe.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Have you ever made a mistake that you wish you could undo? Correcting past mistakes is one of the reasons we find the concept of time travel so fascinating. As often portrayed in science fiction, with a time machine, nothing is permanent anymore \u2013 you can always go back and change it. But is time [\u2026]<\/p>\n","protected":false},"author":511,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[219,1515],"tags":[],"class_list":["post-138758","post","type-post","status-publish","format-standard","hentry","category-physics","category-time-travel"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/138758","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/511"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=138758"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/138758\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=138758"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=138758"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=138758"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}