{"id":13396,"date":"2020-04-21T07:38:53","date_gmt":"2020-04-21T14:38:53","guid":{"rendered":"http:\/\/www.preposterousuniverse.com\/blog\/?p=13396"},"modified":"2020-04-26T09:38:53","modified_gmt":"2020-04-26T16:38:53","slug":"the-biggest-ideas-in-the-universe-5-time","status":"publish","type":"post","link":"https:\/\/preposterousuniverse.com\/blog\/2020\/04\/21\/the-biggest-ideas-in-the-universe-5-time\/","title":{"rendered":"The Biggest Ideas in the Universe | 5. Time"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">For this installment of <a href=\"https:\/\/www.preposterousuniverse.com\/blog\/category\/biggest-ideas-in-the-universe\/\">The Biggest Ideas in the Universe<\/a>, we turn to one of my favorite topics, Time. (It&#8217;s a natural followup to Space, which we looked at <a href=\"https:\/\/www.preposterousuniverse.com\/blog\/2020\/04\/14\/the-biggest-ideas-in-the-universe-4-space\/\">last week<\/a>.) There is so much to say about time that we have to judiciously choose just a few aspects: are the past and future as real as the present, how do we measure time, and why does it have an arrow? But I suspect we&#8217;ll be diving more deeply into the mysteries of time as the series progresses.<\/p>\n\n\n<figure class=\"wp-block-embed-youtube wp-block-embed is-type-video is-provider-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"lyte-wrapper\" title=\"The Biggest Ideas in the Universe | 5. Time\" style=\"width:640px;max-width:100%;margin:5px;\"><div class=\"lyMe\" id=\"WYL_KYfFCApo-Rg\" itemprop=\"video\" itemscope itemtype=\"https:\/\/schema.org\/VideoObject\"><div><meta itemprop=\"thumbnailUrl\" content=\"https:\/\/i.ytimg.com\/vi\/KYfFCApo-Rg\/hqdefault.jpg\" \/><meta itemprop=\"embedURL\" content=\"https:\/\/www.youtube.com\/embed\/KYfFCApo-Rg\" \/><meta itemprop=\"duration\" content=\"PT54M31S\" \/><meta itemprop=\"uploadDate\" content=\"2020-04-21T14:37:28Z\" \/><\/div><div id=\"lyte_KYfFCApo-Rg\" data-src=\"https:\/\/i.ytimg.com\/vi\/KYfFCApo-Rg\/hqdefault.jpg\" class=\"pL\"><div class=\"tC\"><div class=\"tT\" itemprop=\"name\">The Biggest Ideas in the Universe | 5. Time<\/div><\/div><div class=\"play\"><\/div><div class=\"ctrl\"><div class=\"Lctrl\"><\/div><div class=\"Rctrl\"><\/div><\/div><\/div><noscript><a href=\"https:\/\/youtu.be\/KYfFCApo-Rg\" rel=\"nofollow\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i.ytimg.com\/vi\/KYfFCApo-Rg\/0.jpg\" alt=\"The Biggest Ideas in the Universe | 5. Time\" width=\"640\" height=\"340\" \/><br \/>Watch this video on YouTube<\/a><\/noscript><meta itemprop=\"description\" content=\"The Biggest Ideas in the Universe is a series of videos where I talk informally about some of the fundamental concepts that help us understand our natural world. Exceedingly casual, not overly polished, and meant for absolutely everybody. This is Idea #5, &quot;Time.&quot; We talk about what time is, whether it&#039;s &quot;real,&quot; and about why it seems to move in just one direction. That gets us a bit into entropy, which is a teaser for a later video in the series. My web page: http:\/\/www.preposterousuniverse.com\/ My YouTube channel: https:\/\/www.youtube.com\/c\/seancarroll Mindscape podcast: http:\/\/www.preposterousuniverse.com\/podcast The Biggest Ideas playlist: https:\/\/www.youtube.com\/watch?v=HI09kat_GeI&amp;list=PLrxfgDEc2NxZJcWcrxH3jyjUUrJlnoyzX&amp;ab_channel=SeanCarroll Blog posts for the series: http:\/\/www.preposterousuniverse.com\/blog\/category\/biggest-ideas-in-the-universe\/ Background image: https:\/\/commons.wikimedia.org\/wiki\/File:Czech-2013-Prague-Astronomical_clock_face.jpg #science #physics #ideas #universe #learning #cosmology #philosophy #math #time\"><\/div><\/div><div class=\"lL\" style=\"max-width:100%;width:640px;margin:5px;\"><\/div><figcaption><\/figcaption><\/figure>\n\n\n<p class=\"wp-block-paragraph\">And here is the associated Q&amp;A video, where I sneak in a discussion of Newcomb&#8217;s Paradox:<\/p>\n\n\n<figure class=\"wp-block-embed-youtube wp-block-embed is-type-video is-provider-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"lyte-wrapper\" title=\"The Biggest Ideas in the Universe | Q&amp;amp;A 5 - Time\" style=\"width:640px;max-width:100%;margin:5px;\"><div class=\"lyMe\" id=\"WYL_IEBXFEQyPuw\" itemprop=\"video\" itemscope itemtype=\"https:\/\/schema.org\/VideoObject\"><div><meta itemprop=\"thumbnailUrl\" content=\"https:\/\/i.ytimg.com\/vi\/IEBXFEQyPuw\/hqdefault.jpg\" \/><meta itemprop=\"embedURL\" content=\"https:\/\/www.youtube.com\/embed\/IEBXFEQyPuw\" \/><meta itemprop=\"duration\" content=\"PT51M11S\" \/><meta itemprop=\"uploadDate\" content=\"2020-04-26T16:36:25Z\" \/><\/div><div id=\"lyte_IEBXFEQyPuw\" data-src=\"https:\/\/i.ytimg.com\/vi\/IEBXFEQyPuw\/hqdefault.jpg\" class=\"pL\"><div class=\"tC\"><div class=\"tT\" itemprop=\"name\">The Biggest Ideas in the Universe | Q&amp;A 5 - Time<\/div><\/div><div class=\"play\"><\/div><div class=\"ctrl\"><div class=\"Lctrl\"><\/div><div class=\"Rctrl\"><\/div><\/div><\/div><noscript><a href=\"https:\/\/youtu.be\/IEBXFEQyPuw\" rel=\"nofollow\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i.ytimg.com\/vi\/IEBXFEQyPuw\/0.jpg\" alt=\"The Biggest Ideas in the Universe | Q&amp;amp;A 5 - Time\" width=\"640\" height=\"340\" \/><br \/>Watch this video on YouTube<\/a><\/noscript><meta itemprop=\"description\" content=\"The Biggest Ideas in the Universe is a series of videos where I talk informally about some of the fundamental concepts that help us understand our natural world. Exceedingly casual, not overly polished, and meant for absolutely everybody. This is the Q&amp;A video following Idea #5, Time, the video for which can be found here: https:\/\/www.youtube.com\/watch?v=KYfFCApo-Rg&amp;list=PLrxfgDEc2NxZJcWcrxH3jyjUUrJlnoyzX&amp;index=10&amp;ab_channel=SeanCarroll My web page: http:\/\/www.preposterousuniverse.com\/ My YouTube channel: https:\/\/www.youtube.com\/c\/seancarroll Mindscape podcast: http:\/\/www.preposterousuniverse.com\/podcast The Biggest Ideas playlist: https:\/\/www.youtube.com\/watch?v=HI09kat_GeI&amp;list=PLrxfgDEc2NxZJcWcrxH3jyjUUrJlnoyzX&amp;ab_channel=SeanCarroll Blog posts for the series: http:\/\/www.preposterousuniverse.com\/blog\/category\/biggest-ideas-in-the-universe\/ Background image: https:\/\/commons.wikimedia.org\/wiki\/File:Czech-2013-Prague-Astronomical_clock_face.jpg #science #physics #ideas #universe #learning #cosmology #philosophy #math #time\"><\/div><\/div><div class=\"lL\" style=\"max-width:100%;width:640px;margin:5px;\"><\/div><figcaption><\/figcaption><\/figure>","protected":false},"excerpt":{"rendered":"<p>For this installment of The Biggest Ideas in the Universe, we turn to one of my favorite topics, Time. (It&#8217;s a natural followup to Space, which we looked at last week.) There is so much to say about time that we have to judiciously choose just a few aspects: are the past and future as [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[137,28,35],"tags":[],"class_list":["post-13396","post","type-post","status-publish","format-standard","hentry","category-biggest-ideas-in-the-universe","category-science","category-time"],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/preposterousuniverse.com\/blog\/wp-json\/wp\/v2\/posts\/13396","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/preposterousuniverse.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/preposterousuniverse.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/preposterousuniverse.com\/blog\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/preposterousuniverse.com\/blog\/wp-json\/wp\/v2\/comments?post=13396"}],"version-history":[{"count":4,"href":"https:\/\/preposterousuniverse.com\/blog\/wp-json\/wp\/v2\/posts\/13396\/revisions"}],"predecessor-version":[{"id":13413,"href":"https:\/\/preposterousuniverse.com\/blog\/wp-json\/wp\/v2\/posts\/13396\/revisions\/13413"}],"wp:attachment":[{"href":"https:\/\/preposterousuniverse.com\/blog\/wp-json\/wp\/v2\/media?parent=13396"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/preposterousuniverse.com\/blog\/wp-json\/wp\/v2\/categories?post=13396"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/preposterousuniverse.com\/blog\/wp-json\/wp\/v2\/tags?post=13396"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}