{"page":"\u003clink rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/resources-572d6a42.css\" /\u003e\n\u003clink rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/lp_boclips_stylesheets-f4d0de30.css\" media=\"all\" /\u003e\n\u003cdiv data-title='Is the E8 Lattice a Possible Theory of Everything?' data-url='/boclips/videos/689565b98b3f8d9d4df8e32c' data-video-url='/boclips/videos/689565b98b3f8d9d4df8e32c' id='bo_player_modal'\u003e\n\u003cdiv class='boclips-resource-page modal-dialog panel-container'\u003e\n\u003cdiv class='react-notifications-root'\u003e\u003c/div\u003e\n\u003cdiv class='rp-header'\u003e\n\u003cdiv class='rp-type'\u003e\n\u003ci aria-hidden='true' class='fai fa-regular fa-circle-play'\u003e\u003c/i\u003e\nVideo\n\u003c/div\u003e\n\u003ch1 class='rp-title' id='video-title'\u003e\nIs the E8 Lattice a Possible Theory of Everything?\n\u003c/h1\u003e\n\u003cdiv class='rp-actions'\u003e\n\u003cdiv class='mr-1'\u003e\n\u003ca class=\"btn btn-success\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_link_boclips\" data-remote=\"true\" href=\"/subscription/new\"\u003e\u003cspan\u003e\u003cspan\u003eGet Free Access\u003c/span\u003e\u003cspan class=\"\"\u003e for 10 Days\u003c/span\u003e\u003cspan\u003e!\u003c/span\u003e\u003c/span\u003e\u003c/a\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003cdiv class='rp-body'\u003e\n\u003cdiv class='rp-info'\u003e\n\u003cdiv aria-label='Hide resource details' class='rp-hide-info' role='button' tabindex='0'\u003e\u0026times;\u003c/div\u003e\n\u003ci aria-label='Expand resource details' class='rp-expand-info fai fa-solid fa-up-right-and-down-left-from-center' role='button' tabindex='0'\u003e\u003c/i\u003e\n\u003ci aria-label='Compress resource details' class='rp-compress-info fai fa-solid fa-down-left-and-up-right-to-center' role='button' tabindex='0'\u003e\u003c/i\u003e\n\u003cdiv class='rp-rating'\u003e\n\u003cspan class='resource-pool'\u003e\n\u003cspan class='pool-label'\u003ePublisher:\u003c/span\u003e\n\u003cspan class='pool-name'\u003e\n\u003cspan class='text'\u003e\u003ca data-publisher-id=\"30356011\" href=\"/search?publisher_ids%5B%5D=30356011\"\u003eCurated Video\u003c/a\u003e\u003c/span\u003e\n\u003c/span\u003e\n\u003c/span\u003e\n\u003c/div\u003e\n\u003cdiv class='rp-description'\u003e\n\u003cspan class='short-description'\u003eE8 Lie group and E8 Lattice has sometimes been called the most beautiful mathematical structure in the world. Is it the theory of everything or the true nature of reality? It even has an entire research company behind it called \"Quantum...\u003c/span\u003e\n\u003cspan class='full-description hide'\u003eE8 Lie group and E8 Lattice has sometimes been called the most beautiful mathematical structure in the world. Is it the theory of everything or the true nature of reality? It even has an entire research company behind it called \"Quantum Gravity Research\"\u003cbr/\u003e\u003cbr/\u003eIt is a 248 dimensional object, but it can also be thought of as an object that has 8 spatial dimensions, with 248 symmetries.\u003cbr/\u003e\u003cbr/\u003eWhy is this structure important? Well, it happens to show up in parts of String Theory. But also in 2007, a theoretical physicist Antony Garrett Lisi published a paper proclaiming that the mathematics of this structure contained all the particles and forces in the universe.  He called it the “the exceptionally simple theory of everything” What Lisi did is he found a relationship between this object and all the forces and particles we know about.  \u003cbr/\u003e\u003cbr/\u003eAccording to the standard model, there are 4 fundamental forces in nature, strong force, weak force, electromagnetism and gravity.  And there are 12 fundamental particles.  In addition, each of these particles has a antiparticle of itself.  In total, these make up all the elementary particles, and there are exactly 28 of them. 24 elementary particles, and 4 force carrier particles. Each of these distinct elementary particles has eight quantum numbers assigned to it, based on the charges each particle has. \u003cbr/\u003eThis brings the number of distinct particles to 224.  \u003cbr/\u003e\u003cbr/\u003eLisi found that he could mathematically equate all of these particles to one of the points in the E8 model.\u003cbr/\u003eBut the model has 248 points, not 224.  So what about the empty 24 extra points?  He simply created 24 new theoretical particles. \u003cbr/\u003e\u003cbr/\u003eNotice how the lines radiate from each point: Lisi also found patterns emerging between particles and forces like they happen in actual reality – for example, when photons interact with leptons, they create electrons.  The same thing happens in the E8 lattice.  The connections shown within points on the E8 match up to real, known connections between particles in our physical world.\u003cbr/\u003e\u003cbr/\u003eOne of the particles he assigned to this shape behaves very much like the force carrier for gravity – a graviton.  And this is the key to Lisi claiming that this could be the “theory of everything.” – because it combines matter particles and gravity in one framework.\u003cbr/\u003e\u003cbr/\u003eLisi's theory does have some problems. One of the biggest problems with the theory is that Lisi combines the force carrying particles, Bosons with the matter particles.  String theory does this too, but with the rigorous mathematics to go with it.  This math is not present in E8, so Lisi combining these appears to be arbitrary.  \u003cbr/\u003e\u003cbr/\u003eIn addition, a leading mathematician and expert on Lie groups, Skip Garibaldi wrote a paper in 2010 which mathematically disproved Lisi.  But Lisi came back with counter arguments to that.  \u003cbr/\u003e\u003cbr/\u003eBut the elephant in the room is the 24 new theoretical particles that come out of this theory.  So it requires the existence of undiscovered matter.  However, since the startup of the Large Hardon Collider, it is possible one of lisi’s 24 new theoretical particles could be found. Lisi himself says, \"I'm the first to admit that it's a long shot.\"  \u003cbr/\u003e\u003cbr/\u003eIn fact, I think that even if one of the new theoretical particles is found, it would be a huge breakthrough towards proving this theory is on the right track.  \u003cbr/\u003e\u003cbr/\u003eHow does this compare to string theory?  At least there is a way to prove it, unlike string theory – where we don’t really have a way to prove it.\u003cbr/\u003e\u003cbr/\u003eAnd although E8 has a vast number of dimensions, the physical universe described by the theory would have only the four dimensions we are familiar with and not the 10 or 11 of string theory. \u003cbr/\u003e\u003cbr/\u003eYou may have heard of a research organization called Quantum Gravity Research.  This group has built a whole company around the idea of E8 being the theory of everything.  They have some really well produced and slick videos on you tube that you can check out for yourself.  They are like mini movies with actors, special effects, and animations.  So I commend them for making this science approachable to everyday people. \u003cbr/\u003e\u003cbr/\u003eThe problem with their videos is they are mixing actual proven concepts in physics with a lot of unproven concepts, including new age mysticism.  This really diminishes their credibility in my view because the viewer doesn’t know which part is true and which part is conjecture.  \u003cbr/\u003e\u003cbr/\u003eE8 is a real mathematical structure.  It has been around for a long time.  Quantum Gravity Research people did not come up with it.  \u003cbr/\u003e\u003cbr/\u003eAnd I think it’s an interesting idea.  All that needs to be done, is for the large hadron collider to find at least one of 24 theoretical particles, and this theory may get hoards of scientists singing its praises. \u003c/span\u003e\n\u003c/div\u003e\n\u003cdiv class='action-container flex justify-between'\u003e\n\u003cbutton aria-expanded='false' aria-label='Read more description' class='rp-full-description' type='button'\u003e\n\u003ci class='fai fa-solid fa-align-left'\u003e\u003c/i\u003e\n\u003cspan id='read_more'\u003eRead More\u003c/span\u003e\n\u003c/button\u003e\n\u003cdiv class='rp-report'\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003cdiv aria-labelledby='resource-details-heading' class='rp-info-section'\u003e\n\u003ch2 class='title' id='resource-details-heading'\u003eResource Details\u003c/h2\u003e\n\u003cdiv class='rp-resource-details clearfix'\u003e\n\u003cdiv class='detail'\u003e\n\u003cdl\u003e\n\u003cdt\u003eCurator Rating\u003c/dt\u003e\n\u003cdd\u003e\u003cspan class=\"star-rating\" aria-label=\"4.0 out 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