{"id":246449,"date":"2026-11-03T14:09:59","date_gmt":"2026-11-03T20:09:59","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2026\/11\/just-3-lines-of-math-rule-out-time-travel-in-many-possible-universes-physicist-says"},"modified":"2026-11-03T14:09:59","modified_gmt":"2026-11-03T20:09:59","slug":"just-3-lines-of-math-rule-out-time-travel-in-many-possible-universes-physicist-says","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2026\/11\/just-3-lines-of-math-rule-out-time-travel-in-many-possible-universes-physicist-says","title":{"rendered":"Just 3 Lines of Math Rule Out Time Travel in Many Possible Universes, Physicist Says"},"content":{"rendered":"\n<p>Time travel is a dream shared by pretty much all of us.<\/p>\n<p>But the dearth of visitors from the future \u2013 and the dismal turnout at the <a href=\"https:\/\/en.wikipedia.org\/wiki\/Hawking's_time_traveller_party\">famed time traveler party<\/a> \u2013 is alarming for hopefuls.<\/p>\n<p>Still, hypothetical time travel ideas abound, including traversable wormholes propped open by undiscovered exotic states of matter, and a rocket ship skirting billions of light-years around a <a href=\"https:\/\/www.sciencealert.com\/traveling-back-in-time-is-possible-inside-universes-that-spin\">spinning Universe<\/a> to end up back in its past.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Time travel is a dream shared by pretty much all of us. But the dearth of visitors from the future \u2013 and the dismal turnout at the famed time traveler party \u2013 is alarming for hopefuls. Still, hypothetical time travel ideas abound, including traversable wormholes propped open by undiscovered exotic states of matter, and a [\u2026]<\/p>\n","protected":false},"author":662,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[33,2229,1515],"tags":[],"class_list":["post-246449","post","type-post","status-publish","format-standard","hentry","category-cosmology","category-mathematics","category-time-travel"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/246449","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\/662"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=246449"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/246449\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=246449"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=246449"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=246449"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}