Summary
Marketers are increasingly recognizing the phenomenon of "bull spend," where ad campaigns generate impressive metrics like impressions but fail to translate into actual revenue. This disconnect highlights the importance of focusing on meaningful results rather than superficial statistics. The discussion emphasizes the need for marketers to cut through the noise and prioritize strategies that yield tangible financial outcomes.
In a deeper dive into the complexities of simulating the universe, the conversation shifts to the challenges of modeling atomic nuclei and the interactions of quarks and gluons. Quantum chromodynamics (QCD) is introduced as a framework for understanding these interactions, which are notoriously difficult to calculate due to the strong force's intensity. The discussion outlines the limitations of traditional methods, such as Feynman diagrams, and introduces lattice QCD as a more effective approach to simulating the behavior of quantum fields.
Lattice QCD transforms the problem of calculating interactions into a manageable form by modeling quantum fields on a discrete lattice. This method allows for the prediction of properties like hadron masses and has proven successful in various applications, including recent experimental results. The conversation concludes with a reflection on the potential of lattice QCD to deepen our understanding of quantum fields and the nature of reality itself.
Show Notes
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If we ever want to simulate a universe, we should probably learn to simulate even a single atomic nucleus. But it’s taken some of the most incredible ingenuity of the past half-century to figure out how that out. All so that today I can teach you how to simulate a very very small universe.
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Hosted by Matt O'Dowd Written by Euan McLean & Matt O'Dowd Post Production by Leonardo Scholzer, Yago Ballarini, Pedro Osinski, Adriano Leal & Stephanie Faria GFX Visualizations: Ajay Manuel Directed by Andrew Kornhaber Associate Producer: Bahar Gholipour Executive Producers: Eric Brown & Andrew Kornhaber Executives in Charge (PBS): Adam Dylewski, Maribel Lopez Director of Programming (PBS): Gabrielle Ewing
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PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateSPACE↓ More info below ↓Uploaded 26-01-21Check out Weathered on PBS Terra: https://youtu.be/q1hj9RCWuH0Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetimeBy the time you've read this, a billion billion dark matter particles may have streamed through your body like ghosts. The particle or particles of the dark sector make up the vast majority of the mass of the universe - so to them, we're the ghostly ones. Today we're going to try to make contact with dark matter particles and enter into the Dark Universe.#space #darkmatter #astrophysicsCheck out the Space Time Merch Storehttps://pbsspacetime.com/Sign up for the mailing list to get episode notifications and hear special announcements!https://mailchi.mp/1a6eb8f2717d/spacetimeHosted by Matt O'DowdWritten by Matt Caplan and Matt O'Dowd Graphics by Leonardo Scholzer, Yago Ballarini, Pedro Osinski, Adriano Leal and Stephanie FariaDirected by Andrew KornhaberAssistant Producer: Setare GholipourExecutive Producers: Eric Brown and Andrew KornhaberEnd Credits Music by J.R.S. Schattenberg: https://www.youtube.com/channel/UCRl6-nb4iOnsij-vnpAjp0QSpecial Thanks to Our Patreon SupportersBig Bang SupportersSandy WuMatthew MillerClinton RobinsonSean MaddoxBrodie RaoScott GrayAhmad JodehRadu NegulescuAlexander TamasMorgan HoughJuan BenetFabrice EapMark RosenthalDavid NicklasQuasar SupportersHank SChristina OegrenMark HeisingVinnie FalcoHypernova Supporterswilliam bryanMike SwayzemuOn MarketingRussell PopeBen DeloL. Wayne AusbrooksNicholas NewlinMark Matthew BoskoJason FinnАнтон КочковAlec S-LJulian TyackeJohn R. SlavikMathewDanton SpiveyDonal BotkinJohn PollockEdmund FokschanerJoseph SalomoneMatthew O'Connorchuck zegarJordan Youngm0nkJohn HofmannTimothy McCullochGamma Ray Burst SupportersAlmog CohenAlex EdwardsNickÁdám KettingerSylvain LeducMatthew HarlowRobert C SchuppAnthony KahngMD3Endre PechDaniel JenningsCameron SampsonPratik MukherjeeGeoffrey ClarionAstronauticistNateDarren DuncanLily kawaiiRuss CreechJeremy ReedMagistrala Хемус [Kybrit]Derek DavisEric WebsterSteven SartoreDrJYouDavid JohnstonJ. KingMichael BartonChristopher BarronJames RamseyJustin JermynMr TAndrew MannJeremiah Johnsonfieldsa eleanoryPeter MertzKevin O'ConnellRichard DeightonIsaac SuttellDevon RosenthalOliver FlanaganDawn M FinkBleys GoodsonDarryl J LyleRobert WalterBruce BIsmael MontecelAndrew RichmondSimon OliphantMirik GogriDavid HughesChristopher HartnettMark Daniel CohenBrandon LattinYannick WeynsNickolas Andrew FreemanBrian BlanchardShane CalimlimTybie FitzhughRobert IlardiAstaurusEric KieblerCraig StonahaMartin SkansMichael ConroyGraydon GossFrederic SimonGreg SmithTonyfaceJohn RobinsonA GKevin LeeAdrian HatchYurii KonovaliukJohn FunaiCass CostelloGeoffrey ShortBradley JenkinsKyle HoferTim StephaniLuaanAlecZeroCodyMalte UblKing ZeckendorffNick VirtueScott GossettMartin J LollarDan WarrenPatrick SuttonJohn GriffithDaniel LyonsDFaulkKevin WarneAndreas NautschBrandon labonte Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices
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You can learn more about CuriosityStream at https://curiositystream.com/spacetimeUploaded 24-04-19PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateSPACEWe’ve been failing to detect dark matter for decades. Finally, the latest failure to detect dark matter may have actually proved its existence. One of these is true: either most of the matter in the universe is invisible and formed of something not explained by modern particle physics OR our understanding of gravity is completely broken. The debate over which is true has raged for decades, but may finally have been resolved in an unlikely way: the proof that dark matter exists, and really is an exotic, unknown substance, may have come from the discovery of two galaxies that appear to have no dark matter at all. Today on Space Time Journal Club we’ll look at the papers that reveal this discovery:Check out the new Space Time Merch Store!https://pbsspacetime.com/Support Space Time on Patreonhttps://www.patreon.com/pbsspacetimeNeed a Refresher to Fully Understand the Holographic Principle?https://www.youtube.com/playlist?list=PLsPUh22kYmNCHVpiXDJyAcRJ8gluQtOJR#darkmatter #astrophysics #spacetimeHosted by Matt O'DowdWritten by Matt O'DowdGraphics by Kurtis RossDirected by Andrew KornhaberProduced By: Kornhaber BrownThe effect of dark matter was first noticed in 1933, when the legendary Swiss astrophysicist Fritz Zwicky noticed that the galaxies in the Coma cluster were moving too quickly to remain gravitationally bound within that cluster. He guessed the presence of “dunkle m aterie” – a dark matter invisible to his telescope but whose gravitational effect held the cluster together. As with many of Zwicky’s predictions – like the existence of neutron stars and gravitational lensing - this wasn’t taken seriously until decades later. The hunt for dark matter began in earnest after the early 70s when Vera Ruben, discovered that the rotation rates of spiral galaxies were too fast given the mass of their visible stars alone. They should throw themselves to pieces spinning that quickly – that is, unless, a gravitational force of unseen origin was holding them together. Special thanks to our Patreon Big Bang, Quasar and Hypernova Supporters: Big Bang:Anton LifshitsDavid NicklasFabrice EapJuan BenetQuasar:Mark RosenthalTambe BarsbayVinnie FalcoHypernova: Antoine Bruguierchuck zegarDanton SpiveyDonal BotkinEdmund FokschanerJohn HofmannJordan YoungJoseph SalomonekkmMark HeisingMatthewMatthew O'ConnorThanks to our Patreon Gamma Ray Burst Supporters: Adrien MoyneuxAlexander LazerevAlexey EromenkoAndrewas NautschAntonio RuizBradley JenkinsBrandon LabonteBuruk AregawiCarlo MogaveroDaniel LyonsDavid BehtalaDustan JonesGeoffrey ShortJames FlowersJames QuinteroJohn FunaiJohn PollockJonahJoseph DillmanJoseph EmisonJosh ThomasKevin WarneKyle HoferMalte UblMark VasileNathan HitchingsNicholas RoseNick VirtueRatfeastRyan JonesScott GossettSigurd Ruud FrivikTim CrookhamTim StephaniTommy MogensenYurii Konovaliukسلطان الخليفي Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACEUploaded 19-10-17It turns out that "nothing" is one of the most interesting somethings in all of physics. Signup for your free trial to The Great Courses Plus here: http://ow.ly/OOOp30beNytNote: There is a correction in this video that has been addressed in the pinned comment below.You can further support us on Patreon at https://www.patreon.com/pbsspacetimeGet your own Space Time tshirt at http://bit.ly/1QlzoBiTweet at us! @pbsspacetimeFacebook: facebook.com/pbsspacetimeEmail us! pbsspacetime [at] gmail [dot] comComment on Reddit: http://www.reddit.com/r/pbsspacetimeHelp translate our videos!https://www.youtube.com/timedtext_cs_panel?tab=2&c=UC7_gcs09iThXybpVgjHZ_7gPrevious Episode:Absolute Cold | Space Timehttps://www.youtube.com/watch?v=OvgZqGxF3eoLinks to Comments Response:Man from Nantuckethttps://www.youtube.com/watch?v=OvgZqGxF3eo&lc=z22au3kgsnywi3tfuacdp43bey3x42yghxxfro3of3dw03c010cLaxmi Papneyhttps://www.youtube.com/watch?v=OvgZqGxF3eo&lc=z221wb4gbmqozpfih04t1aokghgvqbdfhp5uaokihurork0h00410 Flo Strikerhttps://www.youtube.com/watch?v=OvgZqGxF3eo&lc=z22exnpronzrfh4ij04t1aokgvbvlfrzle5r0scv5yx4bk0h00410 HK Normanhttps://www.youtube.com/watch?v=OvgZqGxF3eo&lc=z22gsnaxxkr4ht0vuacdp43b2kufaeojpztkpo35ecpw03c010c thesimulacrehttps://www.youtube.com/watch?v=OvgZqGxF3eo&lc=z22mxzsqdkyhuvkdkacdp433mitjuajhidaq0f5avexw03c010c How do we study nothing? An empty jar still contains something: molecules of air and a bath of infrared light from its warm environment. But what if we suck out every last molecule of air, chill the jar to absolute zero, and shield it from all external radiation? The jar would contain only empty space, but it turns out that empty space is far from nothing.Written and Hosted by Matt O'DowdProduced by Rusty WardGraphics by Kurt RossAssistant Editing and Sound Design by Mike PetrowMade by Kornhaber Brown (www.kornhaberbrown.com)Special thanks to our Patreon Big Bang, Quasar and Hypernova Supporters: Big BangBITISMCoolAsCatsDavid NicklasRichard SenegorQuasarTambe BarsbayMayank M. MehrotaMars YenturMark RosenthalDean FuquaY2Justin LloydHypernovaEdmund FokschanerMax LevineMatthew O’ConnorEugene LawsonBarry HatfieldMartha HuntJoseph SalomoneChuck ZegarCraig PetersonJordan YoungRatfeastJohn HofmannThanks to our Patreon Gamma Ray Burst Supporters: Denys IvanovNick VirtueAlexey EromenkoNicholas RoseScott GossettMark DykstraPeter DurocherMichael KersChris HicksMark VasilePatrick MurraySultan AlkhulaifiAlex SetoMichal-Peanut KarmiErik SteinDaniel LyonsKevin WarneJJ BagnellJ RejcAmy JieAvi GoldfingerJohn PettitShannan CatalanoFlorian StinglmayrYubo DuBenoit Pagé-GuitardNathan LenizJessica FraleyLoro LukicBrandon LabonteDavid CraneGreg WeissThe Great Courses Plus is currently available to watch through a web browser to almost anyone in the world and optimized for the US market. The Great Courses Plus is currently working to both optimize the product globally and accept credit card payments globally. Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices