Watch the full video with Julian Barbour here: https://youtu.be/nojc3iXpFxw Julian Barbour is the author of the highly regarded The Discovery of Dynamics and the bestseller The End of Time and The Janus Point. He received his Ph.D. in physics from the University of Cologne in 1968. He is a past visiting professor of physics at the University of Oxford and lives on the edge of the scenic Cotswolds, UK. A major new work of physics, The Janus Point will transform our understanding of the nature of existence. In a universe filled with chaos and disorder, Julian Barbour makes the radical argument that the growth of order drives the passage of time — and shapes the destiny of the universe. Time is among the universe's greatest mysteries. Why, when most laws of physics allow for it to flow forward and backward, does it only go forward? Physicists have long appealed to the second law of thermodynamics, held to predict the increase of disorder in the universe, to explain this. In The Janus Point, physicist Julian Barbour argues that the second law has been misapplied and that the growth of order determines how we experience time. In his view, the big bang becomes the "Janus point," a moment of minimal order from which time could flow, and order increase, in two directions. The Janus Point has remarkable implications: while most physicists predict that the universe will become mired in disorder, Barbour sees the possibility that order — the stuff of life — can grow without bound. Julian Barbour on "The Janus Point: A New Theory of Time" Join this channel to get access to perks: https://www.youtube.com/channel/UCmXH_moPhfkqCk6S3b9RWuw/join ? Watch my most popular videos:? Neil Turok https://www.youtube.com/watch?v=Dt5cFLN65fI Frank Wilczek https://youtu.be/3z8RqKMQHe0?sub_confirmation=1 Eric Weinstein vs. Stephen Wolfram https://www.youtube.com/watch?v=OI0AZ4Y4Ip4?sub_confirmation=1 Sir Roger Penrose: https://youtu.be/AMuqyAvX7Wo Sabine Hossenfelder: https://youtu.be/g00ilS6tBvs Avi Loeb: https://youtu.be/N9lUceHsLRw Follow me to ask questions of my guests: ?‍♂️ Twitter: https://twitter.com/DrBrianKeating ? Subscribe https://www.youtube.com/DrBrianKeating?sub_confirmation=1 ? Join my mailing list; just click here http://briankeating.com/mailing_list ✍️ Detailed Blog posts here: https://briankeating.com/blog.php ?️ Listen on audio-only platforms: https://briankeating.com/podcast #universe #podcast #briankeating #intotheimpossible #science #astronomy #cosmology #cosmicmicrowavebackground ... https://www.youtube.com/watch?v=xNBsznK7oDY

#ANITA #ParallelUniverses #Multiverse How would you react to news that your experimental results were being used to claim evidence for a parallel universe? That's what happened recently to a friend of mine. An article in the New York Post led me to contact my colleague Prof. Abigail Vieregg at the University of Chicago. Abby's been working on the ANITA experiment for the last decade, and is an expert in all aspects of the experiment. I spoke to her about this article: https://nypost.com/2020/05/19/nasa-finds-evidence-of-parallel-universe-where-time-runs-backward-report/ We also chatted about eerie parallels to the #BICEP2 experiment that we both worked on. Abby was a huge part of BICEP2 and is featured in my book, Losing the Nobel Prize: A Story of Cosmology, Ambition, and the Perils of Science's Highest Honor: http://amzn.to/2sa5UpA. A nice article summarizing ANITA's current state of affairs is available here: https://www.cnn.com/2020/05/27/world/neutrino-research-anita-scn-trnd/index.html Find Abby on the web: https://kicp.uchicago.edu/~avieregg/ Read a [technical] paper co-authored by Abby on a possible alternative explanation of the ANITA data: https://arxiv.org/abs/1904.12865) Check out Abby's blog shows what it feels like to be working at the upper echelons of experimental physics: www.abbyonice.blogspot.com 0:00 - Introduction 0:05:25 What is ANITA? https://www.phys.hawaii.edu/~anita/ 0:07:31 What is a neutrino? https://en.wikipedia.org/wiki/Neutrino 0:12:48 Why go all the way to Antarctica? 0:14:26 Why put it on a balloon once you got there? 0:15:53 What's life like in Antarctica? Abby's blog: www.abbyonice.blogspot.com 0:23:37 How confident are you in the data? 0:26:55 What are 'backgrounds'? 0:28:55 The New scientist article: https://www.newscientist.com/article/mg24532770-400-we-may-have-spotted-a-parallel-universe-going-backwards-in-time/ 0:33:31 Hype in science and how to avoid it! 0:37:04 BICEP2 similarities: https://youtu.be/4NIaYhtc434 0:43:28 How to end an experiment? 0:45:51 When to start an experiment: look for 10x improvement. (hat tip to Peter Thiel: https://amzn.to/2XHGwUz) 0:50:13 Multiverse featured in both ANITA and BICEP2! 0:53:17 How to Choose yourself as a professor: build your experimental 'brand' & creativity Watch my most popular videos: Eric Weinstein: https://youtu.be/YjsPb3kBGnk?sub_confirmation=1 Jim Simons: https://youtu.be/6fr8XOtbPqM?sub_confirmation=1 Noam Chomsky: https://youtu.be/Iaz6JIxDh6Y?sub_confirmation=1 Sabine Hossenfelder: https://youtu.be/V6dMM2-X6nk?sub_confirmation=1 ?‍♂️ Find me on Twitter at https://twitter.com/DrBrianKeating ? Find me on Instagram at https://instagram.com/DrBrianKeating ? Buy my book LOSING THE NOBEL PRIZE: http:/ ... https://www.youtube.com/watch?v=LDYAKdSqiBU

#BlackHole #Singularity #AdaptiveOptics An incredibly deep and intimate interview with a towering figure in observational and experimental astrophysics! Reinhard is one of the world's leading authorities in the science of MONSTER black holes, like the one that lies at the heart of the Milky Way galaxy. We had a fascinating conversation about his role models including Charlie Townes and his friend and co-laureate (and past guest on this podcast, Sir Roger Penrose). Along the way you'll learn about the challenges of exploring black holes in our galaxy and others. Plus you'll hear his fascinating thoughts on the future of observational astronomy and a touching tribute to his late father, Ludvig. Reinhard Genzel is a German astrophysicist, co-director of the Max Planck Institute for Extraterrestrial Physics, a professor at LMU and an emeritus professor at the University of California, Berkeley. He was awarded the 2020 Nobel Prize in Physics "for the discovery of a supermassive compact object at the centre of our galaxy", which he shared with Andrea Ghez and Roger Penrose. Reinhard Genzel studies infrared- and submillimetre astronomy. He and his group are active in developing ground- and space-based instruments for astronomy. They used these to track the motions of stars at the centre of the Milky Way, around Sagittarius A*, and show that they were orbiting a very massive object, now known to be a black hole. Genzel is also active in studies of the formation and evolution of galaxies. In July 2018, Reinhard Genzel et al. reported that star S2 orbiting Sgr A* had been recorded at 7,650 km/s or 2.55% the speed of light leading up to the pericentre approach in May 2018 at about 120 AU ≈ 1400 Schwarzschild radii from Sgr A*. This allowed them to test the redshift predicted by general relativity at relativistic velocities, finding additional confirmation of the theory. In our chat, Genzel recalls his journey as an astrophysicist; the influence of his father, Ludwig Genzel; his experiences working with Charles H. Townes; and more 00:00:00 Intro 00:09:45 What's missing from black hole theory and what about hype eg wormholes from Interstellar and Kip Thorne? 00:13:30 The ultimate general relativity laboratory: Supermassive black holes 00:15:00 Singularities and quantum gravity 00:20:31 The promise of multimessenger astronomy. 00:23:25 Stellar Ballet of the galactic center and adaptive optics 00:28:28 The origin of the GRAVITY collaboration and the VLT-a 40 year journey. 00:35:00 The legacy of Charles Townes & infrared astronomy 00:42:18 Access to military technology was essential to progress in astronomy for you and Andrea Ghez 00:43:15 What is the next step in the evolution of the GRAVITY collaboration? Hint: Not NEO! 00:52:08 What is your philosophy of ... https://www.youtube.com/watch?v=jEmUPcHq2do

➡️ Watch the full episode: https://youtu.be/hJrkZi7jz5o — Additional resources: ➡️ Check out DemystifySci: ? Website: https://demystifysci.com/ ✖️ Twitter: https://twitter.com/demystifysci ➡️ Follow me on your fav platforms: ✖️ Twitter: https://twitter.com/DrBrianKeating ? YouTube: https://www.youtube.com/DrBrianKeating?sub_confirmation=1 ? Join my mailing list: https://briankeating.com/mailing_list ✍️ Check out my blog: https://briankeating.com/blog.php ?️ Follow my podcast: https://briankeating.com/podcast Into the Impossible with Brian Keating is a podcast dedicated to all those who want to explore the universe within and beyond the known. Make sure to subscribe so you never miss an episode! #intotheimpossible #briankeating #demystifysci ... https://www.youtube.com/watch?v=rNwwwe5uwsI