{"id":4872,"date":"2013-10-10T00:10:44","date_gmt":"2013-10-10T00:10:44","guid":{"rendered":"http:\/\/hobbyspace.com\/Blog\/?p=4872"},"modified":"2013-10-10T00:10:44","modified_gmt":"2013-10-10T00:10:44","slug":"gerard-%e2%80%b2t-hooft-on-physics-beneath-quantum-mechanics-video-joe-polchinsky-on-black-holes-and-firewalls","status":"publish","type":"post","link":"https:\/\/hobbyspace.com\/Blog\/?p=4872","title":{"rendered":"Gerard \u2032t Hooft on physics beneath quantum mechanics + Video: Joe Polchinsky on Black Holes and Firewalls"},"content":{"rendered":"<p>The following two items involve topics that you may not be\u00a0fully\u00a0understand \u00a0(I sure don&#8217;t) but can still be fun if you have any interest in fundamental physics:<\/p>\n<p>Nobel physicist\u00a0<a href=\"http:\/\/www.staff.science.uu.nl\/~hooft101\/\" target=\"_d\">Gerard \u2032t Hooft<\/a>\u00a0offers some interesting speculation on what sort of physics might lie beneath quantum mechanics:\u00a0<a href=\"http:\/\/blogs.scientificamerican.com\/critical-opalescence\/2013\/10\/07\/does-some-deeper-level-of-physics-underlie-quantum-mechanics-an-interview-with-nobelist-gerard-t-hooft\/\" target=\"_d\">Does Some Deeper Level of Physics Underlie Quantum Mechanics? An Interview with Nobelist Gerard \u2019t Hooft &#8211; Critical Opalescence\/Scientific American Blog Network<\/a><\/p>\n<p>(&#8216;t Hooft, by the way, is an enthusiastic supporter of the Mars One initiative:\u00a0<a href=\"http:\/\/www.mars-one.com\/en\/mars-one-news\/11-news\/234-prof-dr-gerard-t-hooft-ambassador-of-mars-one\" target=\"_d\">Prof. Dr. Gerard &#8216;t Hooft, ambassador of Mars One &#8211; Mars One<\/a>.)<\/p>\n<p>===<\/p>\n<p>Joe Polchinsky gives a general overview of the black hole intersection of quantum mechanics and general relativity and the key questions that arise there:<\/p>\n<p><span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe loading=\"lazy\" class=\"youtube-player\" width=\"1600\" height=\"900\" src=\"https:\/\/www.youtube.com\/embed\/tEtt4A7WsDg?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=en&#038;autohide=2&#038;wmode=transparent\" allowfullscreen=\"true\" style=\"border:0;\" sandbox=\"allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox\"><\/iframe><\/span><\/p>\n<p>Caption:<\/p>\n<blockquote><p>Speaker: Joe Polchinsky, Kavli Institute for Particle Physics, UC Santa Barbara<\/p>\n<p>Abstract:<\/p>\n<p>Thought experiments have played an important role in figuring out the laws of physics. For the unification of quantum mechanics and gravity, where the phenomena take place in extreme regimes, they are even more crucial. Hawking&#8217;s 1976 paper &#8220;Breakdown of Predictability in Gravitational Collapse&#8221; presented one of the great thought experiments in the history of physics, arguing that black holes destroy information in a way that requires a modification of the laws of quantum mechanics. Skeptics for years failed to poke holes in Hawking&#8217;s argument, but concluded that if quantum mechanics is to be saved then our understanding of spacetime must break down in a radical way.<\/p>\n<p>Dr. Polchinsky will present some of the history of these ideas, what has already been learned from this puzzle, and the recent `firewall&#8217; controversy, which argues that Einstein&#8217;s theory breaks down radically for an observer falling into a black hole.<\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>The following two items involve topics that you may not be\u00a0fully\u00a0understand \u00a0(I sure don&#8217;t) but can still be fun if you have any interest in fundamental physics: Nobel physicist\u00a0Gerard \u2032t Hooft\u00a0offers some interesting speculation on what sort of physics might lie beneath quantum mechanics:\u00a0Does Some Deeper Level of Physics Underlie Quantum Mechanics? An Interview with &hellip; <a href=\"https:\/\/hobbyspace.com\/Blog\/?p=4872\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Gerard \u2032t Hooft on physics beneath quantum mechanics + Video: Joe Polchinsky on Black Holes and Firewalls<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[9],"tags":[],"class_list":["post-4872","post","type-post","status-publish","format-standard","hentry","category-science-and-technology"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p34aWK-1gA","jetpack-related-posts":[{"id":1553,"url":"https:\/\/hobbyspace.com\/Blog\/?p=1553","url_meta":{"origin":4872,"position":0},"title":"Gerard&#8217;t Hooft, Mars One, and space settlement","author":"TopSpacer","date":"April 6, 2013","format":false,"excerpt":"Though not as well known to the general public, at least in the US, as someone like Stephen Hawking or Steven Weinberg, the Dutch physicist Gerard 't Hooft is a member of the uppermost echelon of theoreticians of the past few decades. I knew that he had endorsed the\u00a0Mars One\u00a0\u2026","rel":"","context":"In &quot;Activism&quot;","block_context":{"text":"Activism","link":"https:\/\/hobbyspace.com\/Blog\/?cat=3"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1742,"url":"https:\/\/hobbyspace.com\/Blog\/?p=1742","url_meta":{"origin":4872,"position":1},"title":"Mars One to initiate its astronaut selection program in on-line event, April 22nd","author":"TopSpacer","date":"April 19, 2013","format":false,"excerpt":"An announcement from Mars One: Mars One launch astronaut selection on Youtube and Twitter AMERSFOORT, April 19th 2013 - Mars One will launch its Astronaut Selection Program on the 22nd of April 2013 at a press conference in New York. The event will be streamed live on Youtube. The briefing\u2026","rel":"","context":"In &quot;Activism&quot;","block_context":{"text":"Activism","link":"https:\/\/hobbyspace.com\/Blog\/?cat=3"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":9989,"url":"https:\/\/hobbyspace.com\/Blog\/?p=9989","url_meta":{"origin":4872,"position":2},"title":"Mars One hits a media storm","author":"TopSpacer","date":"February 25, 2015","format":false,"excerpt":"The announcement\u00a0last week by\u00a0Mars One\u00a0of the down-select to 100 candidates for Mars missions drew a lot of media attention but then it all turned rather negative\u00a0with news that the reality show planned for the selection of the final 24 has fallen through and\u00a0that\u00a0little progress is\u00a0happening regarding\u00a0plans to send an unmanned\u2026","rel":"","context":"In &quot;DIY space&quot;","block_context":{"text":"DIY space","link":"https:\/\/hobbyspace.com\/Blog\/?cat=35"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1793,"url":"https:\/\/hobbyspace.com\/Blog\/?p=1793","url_meta":{"origin":4872,"position":3},"title":"Video: The Mars One astronaut selection program briefing","author":"TopSpacer","date":"April 22, 2013","format":false,"excerpt":"The Mars One organization had a press conference event in New York City today to talk about the selection of Applicants for their plan to put a settlement on Mars. The panel included: Bas Lansdorp, Co-Founder and CEO, Mars One Gerard 't Hooft, Nobel laureate and Ambassador of Mars One\u2026","rel":"","context":"In &quot;Activism&quot;","block_context":{"text":"Activism","link":"https:\/\/hobbyspace.com\/Blog\/?cat=3"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/img.youtube.com\/vi\/WJNGH4NZJ4U\/0.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":16312,"url":"https:\/\/hobbyspace.com\/Blog\/?p=16312","url_meta":{"origin":4872,"position":4},"title":"Audio: Recent space podcasts &#8211; SpaceX, Freeman Dyson, wormholes, Martian dust storms, and more","author":"TopSpacer","date":"June 30, 2018","format":false,"excerpt":"Here is a selection of recent space related audio webcasts starting with Bob Zimmerman on the John Batchelor radio show. Be sure to support Bob with his\u00a0annual fund-raising campaign\u00a0now underway. https:\/\/audioboom.com\/posts\/6912805-spacex-is-about-cheaper-and-sooner-bob-zimmerman-behindtheblack-com https:\/\/audioboom.com\/posts\/6912802-hawaii-fails-the-tmt-what-is-to-be-done-bob-zimmerman-behindtheblack-com Check out Bob's periodic updates on what is happening with the Mars rovers and with the Sun, e.g.\u2026","rel":"","context":"In &quot;Multiple media&quot;","block_context":{"text":"Multiple media","link":"https:\/\/hobbyspace.com\/Blog\/?cat=36"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":13879,"url":"https:\/\/hobbyspace.com\/Blog\/?p=13879","url_meta":{"origin":4872,"position":5},"title":"Videos: The SSI High Frontier Concept + Gerard K. O&#8217;Neill &#8211; &#8220;The Vision Uncut&#8221;","author":"TopSpacer","date":"February 7, 2017","format":false,"excerpt":"Here is a video overview of the Space Studies Institute\u00a0(SSI) and the High Frontier vision that the institute aims to fulfill: https:\/\/youtu.be\/0VG-ndTWp_0 The late\u00a0Gerard K. O'Neill was a professor of physics at Princeton, a\u00a0proponent of large in-space habitats for human expansion into the solar system, and a founder of SSI.\u2026","rel":"","context":"In &quot;Activism&quot;","block_context":{"text":"Activism","link":"https:\/\/hobbyspace.com\/Blog\/?cat=3"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/img.youtube.com\/vi\/0VG-ndTWp_0\/0.jpg?resize=350%2C200","width":350,"height":200},"classes":[]}],"_links":{"self":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/4872","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4872"}],"version-history":[{"count":1,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/4872\/revisions"}],"predecessor-version":[{"id":4873,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/4872\/revisions\/4873"}],"wp:attachment":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4872"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4872"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4872"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}