Did scientists recently detect evidence for an Anti-Universe, one where time flows backwards? Or is it an overreach into unsupportable hype? I explore the data that led scientists to make claims about ghostly neutrinos that are their own anti-particles. How do scientists interpret data like these and how do physicists reveal the hidden symmetries of nature? Stange signals were seen in recent years by a NASA-funded radio telescope flown aloft over Antarctica by a giant helium filled balloon. The device, called the Antarctic Impulsive Transient Antenna (ANITA), detects radio signals produced when high-energy particles coming from cosmic sources smash into earth’s atmosphere. Some radio signals waves skim the Earth before being detected by ANITA, and others reflect off the ice. ANITA can tell the difference and some claim their odd behavior are indicative of signals traveling backwards in time. Or are there other interpretatisn? Found out in this video! Technical write up https://arxiv.org/pdf/1603.05218.pdf Characteristics of Four Upward-pointing Cosmic-ray-like Events Observed with ANITA We report on four radio-detected cosmic-ray (CR) or CR-like events observed with the Antarctic Impulsive Transient Antenna (ANITA), a NASA-sponsored long-duration balloon payload. Two of the four were pre- viously identified as stratospheric CR air showers during the ANITA-I flight. A third stratospheric CR was detected during the ANITA-II flight. Here we report on characteristics these three unusual CR events, which develop nearly horizontally, 20-30 km above the surface of the Earth. In addition, we report on a fourth steeply upward-pointing ANITA-I CR-like radio event which has characteristics consistent with a primary that emerged from the surface of the ice. This suggests a possible τ-lepton decay as the origin of this event, but such an interpretation would require significant suppression of the Standard Model τ-neutrino cross section. Popular write up here https://www.discovermagazine.com/the-sciences/are-strange-space-signals-in-antarctica-evidence-of-a-parallel-universe ? Watch my most popular videos:? A New Contender is Here! https://www.youtube.com/watch?v=-6A6myur--c Frank Wilczek https://youtu.be/3z8RqKMQHe0?sub_confirmation=1 Weinstein and Wolfram https://www.youtube.com/watch?v=OI0AZ4Y4Ip4?sub_confirmation=1 Sheldon Glashow: https://youtu.be/a0_iaWgxQtA?sub_confirmation=1 Neil deGrasse Tyson https://youtu.be/1kxgK6J4S5Y Michio Kaku: https://youtu.be/3to9ymn-XKI Michael Saylor: https://youtu.be/CaN_CDKqXOg?sub_confirmation=1 Sir Roger Penrose: https://youtu.be/AMuqyAvX7Wo Jill Tarter https://youtu.be/O9K9OBd3vHk?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/sh98cwRkzAA Sarah Rugheimer: https://youtu.be/w5DxU-lPYK4 Stephen Wolfram: https://youtu.be/nSAemRxzmXM Avi Loeb: https://youtu.be/N9lUceHsLRw Jim Simons: https://youtu.be/6fr8XOtbPqM Be my friend: ?‍♂️ 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.php ✍️ Detailed Blog posts here: https://briankeating.com/blog.php ?️ Listen on audio-only platforms: https://briankeating.com/podcast.php A production of http://imagination.ucsd.edu/ Support the podcast: https://www.patreon.com/drbriankeating ... https://www.youtube.com/watch?v=cgsXR1yruqg

Was 2020 really the "worst year ever," as some would have us believe? Or are things getting better? Harvard psychologist Steven Pinker has shown that poverty, pollution and other challenges are on the wane and we're doing better now in every one of a host of important metrics compared with 30 years ago. Yet progress isn't inevitable, and it doesn't mean everything gets better for all humans all the time, Pinker says. Instead, progress is problem-solving, and we should look at things like climate change, pandemics, and the threat of war as problems to be solved, not inevitable apocalypses in waiting. "We will never have a perfect world, and it would be dangerous to seek one," he says. "But there's no limit to the betterments we can attain if we continue to apply knowledge to enhance human flourishing." Topics Discussed: * How his thinking on liberalism has changed in light of recent events * Presumably it's still the antidote, but what nuances should we keep in mind * For example, free speech is sacrosanct, but with today's technology, "lies get halfway around the world before the truth can tie its laces." * The gatekeepers to the public square are increasingly concentrated. * Technology/social media exacerbate this issue * What should we do? * Advice to young adults * How to navigate these dynamics * Career considerations * His thoughts on capitalism, e.g., Coca Cola, MLB, Delta protesting Georgia; Dr. Seuss; * What about our current situation reconfirms his views? What has caused a rethink? * What has he changed his mind about recently? * What does he believe that nobody else does? * What is he most hopeful about? Most concerned about? Get Enlightenment Now: The Case for Reason, Science, Humanism, and Progress https://amzn.to/3eV6Vs2 Join this channel to get access to perks: https://www.youtube.com/channel/UCmXH_moPhfkqCk6S3b9RWuw/join 00:00:00 Introduction 00:05:31 Why are educated people so bad at making rational decisions? 00:08:20 Why are intellectuals so polarized and so wrong about other fields?: 00:14:08 Galileo, Feynman and the Dunning-Kruger effect. 00:18:33 In light of the pandemic, are you still optimistic about the future? 00:23:01 What is the for-profit media's role in societal polarization? 00:26:20 How will be judged in the future for some of our habits today? 00:30:23 How can we judge religious practices from many years ago? 00:33:46 Would you prefer many readers now or having a single reader 100 years from now? 00:36:35 What is the most precious commodity to you? 00:40:19 What is your take on solving societal problems by curtailing science? (And how to solve the climate crisis) 00:53:28 What's the best writing advice? What book do you give as a gift? 00:55:14 What’s in your Ethical Wil ... https://www.youtube.com/watch?v=ObuLujuthLo