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Marc Kamionkowski: Cosmologists Cope With Tensions, Crises & Anxieties | INTO THE IMPOSSIBLE Podcast
#Cosmology #CosmicMicrowaveBackground #Supersymmetr MOND Can't Replace Dark Matter! "I don't like the idea of MOND as an alternative to dark matter. And the reason is it's just not the theoretical physics we've been developing...The most elementary things that you can think of are firmly encoded in those mathematical theories."
This episode was a blast. We discussed much!
-Anomalies in Cosmology and Particle Physics
-Breaking Out of the Narrow Range: Brainstorming Tension Resolutions
-The Need for a Research Management Process in Modern Physics
-Solving Astrophysical Puzzles: Interpreting Data and Providing Explanations
-Overlooked and Incredible Measurements in Cosmology
-Theories of Galaxy Formation & Structure: Analyzing Rotation Curves
-The Invariance of Laws in Modern Physics: Debating MOND and Dark Matter
-Measuring the Excess Cosmic Optical Background: The SPHEREx Project
-Reflecting on Losing the Nobel Prize
Marc Kamionkowski is a theoretical physicist, whose research is in cosmology, astrophysics, and elementary-particle theory. His main focus has been on particle dark matter, inflation the cosmic microwave background, and cosmic acceleration. His 1999 paper, A Polarization Pursuer’s Guide inspired Professor Keating to create the BICEP experiment. He is the William R. Kenan, Jr. Professor of Physics at Johns Hopkins University.
00:00:00 Intro
00:04:39 The BICEP 2 Press Conference St. Patrick’s Day 2014 and how Professor Kamionkowski inspired the BICEP collaboration and the story of the well-known cosmology paper: A Polarization Pursuers' Guide, 1999 ( https://arxiv.org/abs/astro-ph/9909281 ), the inspiration for BICEP.
00:06:58 Did you realize the implications of your paper for telescope design at the time? Marc’s proposition to measure the amplitude of primordial gravitational waves, even with a small aperture telescope. The origins of BICEP and the Simons Observatory.
00:15:40 Optical surveys are still a cornerstone of observational cosmology like weak gravitational lensing and comparisons to E/ B mode curl components measurements.
00:17:10 Weak lensing Vs baryonic acoustic oscillations. Methods of measuring the matter distribution of the Universe at galactic scales.
00:19:28 What do you think of Modified Newtonian Dynamics (MOND)? Spoiler alert - not much! One physical theory should work everywhere.
00:23:50 The beauty of broken symmetries and why they are important. However, the underlying theories still hold.
00:28:50 Is a theory of everything possible? Are physicists “lost in math”? What do you think makes good mathematical models? Little attention has been given to alternatives to symmetries in string / super-symmetry theories which have not been productive? Behold the examples of Bohr and Balmer’s formula and the breakthroughs of the 20th century. The price tags and time scales are much bigger now. Don’t abandon the notion of symmetry!
00:34:53 The cosmological principle; should it go away? What would you do if it did? All models are approximations. We have good descriptions.
00:41:00 The social contagion of Eric Lerner and the controversy over the refutation of the Big Bang Theory. https://iai.tv/articles/the-big-bang-didnt-happen-auid-2215 Does it make you re-evaluate the standard model of the Universe?
00:45:5l0 About the Hubble Tension. What is it? Why worry? Or not!
00:52:25 The issue of primordial magnetic fields. Could it be an explanation for the Hubble tension?
00:56:00 Professor Kamionkowski’s explanation of early Dark Energy and his 2018 paper.
00:59:10 Anti-helium and anti-matter clouds
01:01:10 What theoretical physics “crisis” or anomalies should we most focus on? How do you choose? Let’s not all focus on the same problems! What about the cosmic optical background found by the New Horizons Long Range Reconnaissance Imager?
01:10:35 Is there an Axion Persurer’s Guide to be written?
01:12:00 What is the status of the theory of Inflation and where will it go? A field Marc helped initiate.
01:17:50 First existential question: What would you put on your monolith?
01:21:20 What have you changed your mind about?
https://www.pnas.org/doi/pdf/10.1073/pnas.1904836116
#Cosmology #ParticlePhysics #NewHorizons #SPHEREx #Inflation #GoodScience
#universe #podcast #briankeating #intotheimpossible #science #astronomy
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...
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This episode was a blast. We discussed much!
-Anomalies in Cosmology and Particle Physics
-Breaking Out of the Narrow Range: Brainstorming Tension Resolutions
-The Need for a Research Management Process in Modern Physics
-Solving Astrophysical Puzzles: Interpreting Data and Providing Explanations
-Overlooked and Incredible Measurements in Cosmology
-Theories of Galaxy Formation & Structure: Analyzing Rotation Curves
-The Invariance of Laws in Modern Physics: Debating MOND and Dark Matter
-Measuring the Excess Cosmic Optical Background: The SPHEREx Project
-Reflecting on Losing the Nobel Prize
Marc Kamionkowski is a theoretical physicist, whose research is in cosmology, astrophysics, and elementary-particle theory. His main focus has been on particle dark matter, inflation the cosmic microwave background, and cosmic acceleration. His 1999 paper, A Polarization Pursuer’s Guide inspired Professor Keating to create the BICEP experiment. He is the William R. Kenan, Jr. Professor of Physics at Johns Hopkins University.
00:00:00 Intro
00:04:39 The BICEP 2 Press Conference St. Patrick’s Day 2014 and how Professor Kamionkowski inspired the BICEP collaboration and the story of the well-known cosmology paper: A Polarization Pursuers' Guide, 1999 ( https://arxiv.org/abs/astro-ph/9909281 ), the inspiration for BICEP.
00:06:58 Did you realize the implications of your paper for telescope design at the time? Marc’s proposition to measure the amplitude of primordial gravitational waves, even with a small aperture telescope. The origins of BICEP and the Simons Observatory.
00:15:40 Optical surveys are still a cornerstone of observational cosmology like weak gravitational lensing and comparisons to E/ B mode curl components measurements.
00:17:10 Weak lensing Vs baryonic acoustic oscillations. Methods of measuring the matter distribution of the Universe at galactic scales.
00:19:28 What do you think of Modified Newtonian Dynamics (MOND)? Spoiler alert - not much! One physical theory should work everywhere.
00:23:50 The beauty of broken symmetries and why they are important. However, the underlying theories still hold.
00:28:50 Is a theory of everything possible? Are physicists “lost in math”? What do you think makes good mathematical models? Little attention has been given to alternatives to symmetries in string / super-symmetry theories which have not been productive? Behold the examples of Bohr and Balmer’s formula and the breakthroughs of the 20th century. The price tags and time scales are much bigger now. Don’t abandon the notion of symmetry!
00:34:53 The cosmological principle; should it go away? What would you do if it did? All models are approximations. We have good descriptions.
00:41:00 The social contagion of Eric Lerner and the controversy over the refutation of the Big Bang Theory. https://iai.tv/articles/the-big-bang-didnt-happen-auid-2215 Does it make you re-evaluate the standard model of the Universe?
00:45:5l0 About the Hubble Tension. What is it? Why worry? Or not!
00:52:25 The issue of primordial magnetic fields. Could it be an explanation for the Hubble tension?
00:56:00 Professor Kamionkowski’s explanation of early Dark Energy and his 2018 paper.
00:59:10 Anti-helium and anti-matter clouds
01:01:10 What theoretical physics “crisis” or anomalies should we most focus on? How do you choose? Let’s not all focus on the same problems! What about the cosmic optical background found by the New Horizons Long Range Reconnaissance Imager?
01:10:35 Is there an Axion Persurer’s Guide to be written?
01:12:00 What is the status of the theory of Inflation and where will it go? A field Marc helped initiate.
01:17:50 First existential question: What would you put on your monolith?
01:21:20 What have you changed your mind about?
https://www.pnas.org/doi/pdf/10.1073/pnas.1904836116
#Cosmology #ParticlePhysics #NewHorizons #SPHEREx #Inflation #GoodScience
#universe #podcast #briankeating #intotheimpossible #science #astronomy
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In this episode of The Michael Shermer Show, based on the cover story from Skeptic magazine 26.1 (2021), Michael speaks with University of California professor of physics Brian Keating about: time, infinity, the shape of the universe, the multiverse, quantum gravity, string theory, the laws of nature, and more… Listen to this fascinating episode for free and order a copy of the Skeptic magazine 26.1 to read Keating’s cover story, complete with splendid graphics, charts, and illustrations (in print or digital formats). SKEPTIC 26.1
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Shermer and Keating discuss:
cosmology and Intelligent Design,
the fine-tuning of the universe,
the multiverse and theism: many worlds or one God?
How does the Intelligent Designer or God as a disembodied mind interact with the physical universe?
If the origin of the universe and its fine-tuned nature points to an intelligence or mind behind it, why don’t most cosmologists, physicists, and astronomers accept that conclusion?
What are laws of nature?
Can you explain the origin of the universe by laws and rules of things in the universe?
What came before the Big Bang?
What caused the bang that gave rise to our universe?
Why there is something rather than nothing?
inflationary cosmology,
What is gravity? What is quantum gravity?
How did the Big Bang theory win out over the Steady State theory?
the difference between Popperian falsification, Kuhnian paradigm, and consensus science,
Is string theory physics, metaphysics, or mathematics?
What shape is the universe? Open, closed, or flat?
What is dark energy and dark matter?
What is time?
What is infinity?
cyclic universes and the multiverse.
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#NoamChomsky #Neuralink #ElonMusk Noam is one of the the most cited scholars in history and it is impossible to ignore his opinions. You may differ with many of them, as I do. But you cannot simply ignore him. Therefore, I was fascinated by Noam’s ideas on the Turing test and its connection to, and implications for, Musk’s Neuralink. It was in-depth, despite his overarching consonance with Turing's view: “The question whether machines can think is too meaningless to deserve discussion" to which Noam adds "It’s kind of like asking whether submarines can swim."
Noam’s thoughts on Elon Musk’s Neuralink project aren’t a secret (https://www.inverse.com/article/32395-elon-musk-neuralink-noam-chomsky) but he goes into a more nuanced account of neural nets and the pursuit of cognition in our discussion.
Our conversation spans centuries of thought about #ArtificialIntelligence, ranging from Descartes to Turing, to Marvin Minsky ending up with his pessimism on Elon Musk's Neuralink project. Watch our full conversation here: https://youtu.be/Iaz6JIxDh6Y?sub_confirmation=1 and find show notes from our conversation here: https://briankeating.com/blog.php
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Sabine Hossenfelder: https://youtu.be/V6dMM2-X6nk?sub_confirmation=1
Sarah Scoles: https://youtu.be/apVKobWigMw
Stephen Wolfram: https://youtu.be/nSAemRxzmXM
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A production of http://imagination.ucsd.edu/
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#ElonMusk #Neuralink #ArtificialIntelligence
Noam Chomsky is one of the most influential and highly cited scholars of our time. He is a pioneer in the fields of linguistics and cognitive science. This episode of INTO THE IMPOSSIBLE covers those topics and delves into his thoughts on communicating with aliens, meditation, and free speech including his contribution to the “Harper’s Magazine letter”.
Chomsky is a prolific author and known political activist. We avoided politics, as is the custom for my interviews. Our conversation also covers the Turing Test, neural nets, and artificial intelligence, including why he expects Elon Musk’s Neuralink project to fail.
Subscribe to my mailing list to receive show notes for this episode: https://briankeating.com/mailing_list.php
0:00 - Introduction
00:11:00 Does Noam Chomsky believe in extraterrestrial life & could we communicate with E.T.?
00:26:30 Busting (or confirming) linguistic myths with the master.
00:41:00 “There is no scientific method, it’s just being intelligent.”
01:00:00 Artificial intelligence applications in cognitive science.
01:11:25 Chomsky University would encourage discovery.
01:23:44 Thoughts on the negative reaction to the Harper’s Magazine article.
01:31:50 What object or knowledge would Chomsky put in or on his monolith?
01:34:09 What did Chomsky think was impossible until he did it?
Noam Chomsky has been called "the father of modern linguistics." He has been a professor at MIT since 1955 (now emeritus) and continues to teach at the University of Arizona at the age of 91. Chomsky has received numerous awards and honorary doctorates, along with being a member of multiple professional societies. He has written over 100 books covering topics including linguistics, politics, and philosophy.
Read “A Letter on Justice and Open Debate,” the letter in Harper’s Magazine which Chomsky signed https://harpers.org/a-letter-on-justice-and-open-debate/
Find Chomsky on the web: https://chomsky.info and Facebook: https://www.facebook.com/Noam-Chomsky-294468630182/
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"Being able to regulate your emotions, regulate your stress, your self-talk is really important. The Air Force has moved to this human performance aspect -- all pilots, as soon as they show up, they start this sports psychology training that we've adapted to flying fighters and that carries with them throughout their career." — Hasard Lee
In his first book, The Art of Clear Thinking, veteran USAF F-35 Stealth Fighter Pilot Hasard Lee distills what he’s learned during his career flying some of the Air Force’s most advanced aircraft. With gripping firsthand accounts from his time as a fighter pilot and fascinating turning points throughout history. As a fighter pilot, Hasard believes that his primary task is good decision-making, and he believes that with the amplification of technology, that skill is more important than ever before. In the book, Hasard reveals powerful decision-making principles that can be used in business and in life.
Hasard spent his career flying both the F-16 and F-35. In 2016, he was selected as the 'Top Instructor Pilot of the Year' for the Air Force's largest F-16 Combat Wing. In 2017, he returned from Afghanistan where his squadron dropped the most ordnance since the opening days of the war. He's flown 82 combat missions and has 4 Air Medals.
Hasard has the distinction of being the only fighter pilot to ever employ two different types of jets in combat on the same day.
Hasard has one of the largest defense channels on YouTube with over 100 million views find him @HasardLee
Transcript and additional resources here: https://app.castmagic.io/share/9f2615b9-d1ef-449f-b93f-df3dd3abf884
00:00:00 Major Hasard Lee and Lt. Commander Ariel Klainerman
00:02:24 Judging the book by its cover
00:05:35 What are the commonalities between Navy and Air Force fighter pilots?
00:07:51 How much do you depend on raw physical reflexes vs. mental training?
00:10:50 What is your training routine and how do you counter/prevent G-LOC?
00:16:00 The OODA Loop theory of decision-making vs. ACE (assess. choose, execute)
00:20:30 What is the future of education and training in aviation and at large?
00:25:00 Joint Terminal Attack Controller (JTAC) training
00:26:30 What are the commonalities between boxing and dog fighting?
00:31:30 How do you view automated systems and AI? What do you teach your students about it?
00:39:57 How do you train people to deal with non-linear, power law situations?
00:43:37 What was your process for writing this, your first book?
00:48:00 How do you decide when to choose?
00:50:25 What is the tunnel vision and how do you overcome it?
00:55:08 What can an elite fighter pilot teach that applies to everyday life?
00:57:50 Fighter pilot myth-busting
00:59:45 Which enemy aircraft do you FEAR the most?
01:00:20 Would you fly with an AI-piloted wingman?
01:02:47 What aircraft would be in your dream hanger?
01:05:00 Have you had any unexplained encounters?
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Is the Simulation Hypothesis really a faith-based initiative? Would Ben Shapiro take a ride on a SpaceX rocket? Would Ben implant a Neuralink chip? Find out in this impossible clip and watch for the full episode here: Ben Shapiro: How to DESTROY America, Daily Habits, Science Fiction, and his DREAM guest! https://youtu.be/rQVf8gKwLHQ?sub_confirmation=1
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A production of http://imagination.ucsd.edu/
...
https://www.youtube.com/watch?v=xk95TJZrhP4
Transaction
Created
1 year ago
Content Type
Language
video/mp4
English
Controlling
VIDEO
CALEB
caleb-scharf-the-ascent-of-information
#Astrobiology #BoltzmanBrains #ArtificialIntelligence
The Ascent of Information offers a humbling vision of a universe built of and for information. Scharf explores how our relationship with data will affect our ongoing evolution as a species. Understanding this relationship will be crucial to preventing our data from becoming more of a burden than an asset, and to preserving the possibility of a human future.
Your information has a life of its own, and it’s using you to get what it wants. One of the most peculiar and possibly unique features of humans is the vast amount of information we carry outside our biological selves. But in our rush to build the infrastructure for the 20 quintillion bits we create every day, we’ve failed to ask exactly why we’re expending ever-increasing amounts of energy, resources, and human effort to maintain all this data.
Drawing on deep ideas and frontier thinking in evolutionary biology, computer science, information theory, and astrobiology, Caleb Scharf argues that information is, in a very real sense, alive. All the data we create—all of our emails, tweets, selfies, A.I.-generated text, and funny cat videos—amounts to an aggregate lifeform. It has goals and needs. It can control our behavior and influence our well-being. And it’s an organism that has evolved right alongside us.
This symbiotic relationship with information offers a startling new lens for looking at the world. Data isn’t just something we produce; it’s the reason we exist. This powerful idea has the potential to upend the way we think about our technology, our role as humans, and the fundamental nature of life.
Caleb Scharf was born and educated in England. He received his B.Sc. in physics from Durham University and his Ph.D. in astronomy from the University of Cambridge. Following postdoctoral work in X-ray astronomy and observational cosmology at the NASA Goddard Space Flight Center and the Space Telescope Science Institute in Maryland, he has been a research scientist at Columbia University in New York. He is currently the director of the multidisciplinary Columbia Astrobiology Center. His research interests include the study of exoplanets, exomoons, and the nature of environments suitable for life.
00:00:00 Intro
00:04:37 How did you come up with the title and cover?
00:07:09 About Boltzman Brains
00:12:32 Is it possible to erase information? Does it live on forever?
00:16:32 What is the Dataome?
00:20:32 Is there an upper limit on the amount of information?
00:28:45 Will AI have imagination?
00:33:46 What are the initial conditions required to create information?
00:39:55 Where are the alien dataomes?
00:50:31 What would you put on your billion-year monolith?
Buy the book https://amzn.to/3qCt5ng
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...
https://www.youtube.com/watch?v=cizY1Eg4Cws
Transaction
Created
1 year ago
Content Type
Language
video/mp4
English
Controlling
VIDEO
MAX T
max-tegmark-eric-weinstein-ai,-aliens,
Join me and my friends Max Tegmark and Eric Weinstein to chat on the last day of 2020! Let's say 'good riddance' with good friends and great conversation! We'll talk a bit about #ArtificialIntelligence, Theories of Everything & the seemingly impossible challenge of building a positive future for humanity.
Max thinks that, by improving the news we receive with the aid of machine learning, we can achieve a brighter future. Check out his new center at MIT: https://iaifi.org
Find him on YouTube https://www.youtube.com/user/mtegmark
Watch Max’s appearance on The INTO THE IMPOSSIBLE Podcast in 2020 discussing Theories of Everything: https://youtu.be/3MX8EpvLwao
Eric Weinstein, host of the Portal https://www.youtube.com/c/EricWeinsteinPhD/featured
will share insights from Geometric Unity and thoughts on the meaning of it all!
Find Eric at https://www.youtube.com/c/EricWeinsteinPhD/featured
Watch Eric’s previous debate with Stephen Wolfram: https://youtu.be/OI0AZ4Y4Ip4
Watch my most popular videos:
Sheldon Glashow: https://youtu.be/a0_iaWgxQtA?sub_confirmation=1
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Frank Wilczek https://youtu.be/3z8RqKMQHe0?sub_confirmation=1
Jill Tarter https://youtu.be/O9K9OBd3vHk?sub_confirmation=1
Eric Weinstein: https://youtu.be/YjsPb3kBGnk?sub_confirmation=1
Sir Roger Penrose https://youtu.be/H8G5onAqlVo?sub_confirmation=1
Juan Maldacena's First Podcast Interview: https://youtu.be/uIzTliTHn7s?sub_confirmation=1
Jim Simons: https://youtu.be/6fr8XOtbPqM?sub_confirmation=1
Sara Seager Venus LIfe: https://youtu.be/QPsEDoOTU6k?sub_confirmation=1
Noam Chomsky: https://youtu.be/Iaz6JIxDh6Y?sub_confirmation=1
Sabine Hossenfelder: https://youtu.be/V6dMM2-X6nk?sub_confirmation=1
Sarah Scoles: https://youtu.be/apVKobWigMw
Stephen Wolfram: https://youtu.be/nSAemRxzmXM
?♂️ 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://amzn.to/2sa5UpA
? Subscribe for more great content https://www.youtube.com/DrBrianKeating?sub_confirmation=1
✍️Detailed Blog posts here: https://briankeating.com/blog.php
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?️Please subscribe, rate, and review the INTO THE IMPOSSIBLE Podcast on iTunes: https://itunes.apple.com/us/podcast/into-the-impossible/id1169885840?mt=2
?️Listen on Spotify: https://spoti.fi/3qplacj
?️Listen on Stitcher: https://bit.ly/33G02ow
A production of http://imagination.ucsd.edu/
...
https://www.youtube.com/watch?v=qRmbQP6ho4c
Transaction
Created
1 year ago
Content Type
Language
video/mp4
English