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Category: quantum physics

Is the Cosmic Microwave Background a Huge Mistake?

Check out my introduction to quantum mechanics course on Brilliant! Get your first 30 days free as well as 20% off an annual premium subscription when you use my link ➜ https://brilliant.org/sabine.

In the Big Bang Theory, the cosmic microwave background — microwave-range radiation that floats through the entire universe at a steady 2.7 Kelvin — is evidence that a hot explosion of plasma kicked off the creation of the universe. But according to a new paper, the microwave radiation came from early galaxies instead. Does this mean that the big bang theory is wrong? Let’s take a look.

Paper: https://www.sciencedirect.com/science… video comes with a quiz which you can take here: https://quizwithit.com/start_thequiz/.… 🤓 Check out my new quiz app ➜ http://quizwithit.com/ 💌 Support me on Donorbox ➜ https://donorbox.org/swtg 📝 Transcripts and written news on Substack ➜ https://sciencewtg.substack.com/ 👉 Transcript with links to references on Patreon ➜ / sabine 📩 Free weekly science newsletter ➜ https://sabinehossenfelder.com/newsle… 👂 Audio only podcast ➜ https://open.spotify.com/show/0MkNfXl… 🔗 Join this channel to get access to perks ➜ / @sabinehossenfelder 🖼️ On instagram ➜ / sciencewtg 📚 Buy my book ➜ https://amzn.to/3HSAWJW #science #sciencenews #physics #bigbang.

This video comes with a quiz which you can take here: https://quizwithit.com/start_thequiz/.…

🤓 Check out my new quiz app ➜ http://quizwithit.com/
💌 Support me on Donorbox ➜ https://donorbox.org/swtg.
📝 Transcripts and written news on Substack ➜ https://sciencewtg.substack.com/
👉 Transcript with links to references on Patreon ➜ / sabine.
📩 Free weekly science newsletter ➜ https://sabinehossenfelder.com/newsle…
👂 Audio only podcast ➜ https://open.spotify.com/show/0MkNfXl…
🔗 Join this channel to get access to perks ➜
/ @sabinehossenfelder.
🖼️ On instagram ➜ / sciencewtg.
📚 Buy my book ➜ https://amzn.to/3HSAWJW

#science #sciencenews #physics #bigbang

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Bio-Robotics Nature’s Blueprint for the Future — Prof. Auke Ijspeert : EPFL Biorobotics Laboratory

In this exciting episode, we dive deep into the world of bio-inspired robotics with Prof. Auke Jan Ijspeert, a Swiss-Dutch roboticist and neuroscientist at the École Polytechnique Fédérale de Lausanne (EPFL). As the head of the Biorobotics Laboratory, Prof. Ijspeert shares how nature serves as the ultimate blueprint for designing the robots of the future. 🌿🤖

🔑 Key Highlights:

Bio-Inspired Robotics: Explore how Prof. Ijspeert and his team are mimicking nature to create innovative robots that move and behave like animals.
Neuroscience & Robotics: Learn how insights from neuroscience help reverse-engineer the sensorimotor coordination found in animals, applying it to robotic systems.
From Simulation to Reality: Discover the challenges of translating robotic simulations into real-world applications.
Exoskeletons & Assistive Technologies: Prof. Ijspeert discusses the development of exoskeletons for healthcare and military use, along with assistive furniture for people with limited mobility.
Humanoid Robots & Autonomous Systems: Get a sneak peek into the future of autonomous robotics, from central pattern generators to humanoid robots.

💡 Why You Should Watch:
Prof. Ijspeert is a trailblazer in the field of biorobotics, blending biology, neuroscience, and engineering to push the boundaries of what robots can achieve. Whether you’re a robotics enthusiast, a neuroscientist, or just curious about how nature inspires technology, this episode is packed with insights that could shape the future of robotics and artificial intelligence.

🔗 Connect with Prof. Auke Ijspeert:

https://www.epfl.ch/labs/biorob/peopl… / biorob_epfl / biorob_epfl Time Stamp 0:00 to 02:35 — Intro, Bio-Inspired Robots 02:35 to 04:13 — Neuroscience to back engineer bio-robots 04:13 to 06:22 — Mimicking nature & biorobots examples 06:22 to 07:55 — Simulation to real life translation challenges 07:55 to 09:10 — Central pattern generators & their role in robotic motion 09:10 to 10:47 — Learnings from creating bio-inspired robots 10:47 to 13:40 — EPFL Bio-Robotics laboratory 13:40 to 15:43 — Applications of Bio-robotics 15:43 to 20:05 — Exoskeleton 18:19 to 20:05 — Assertive furniture robotics 20:05 to 26:30 — exoskeleton in healthcare & military warfare 26:30 to 31:51 — Humanoid Robots 31:51 to 34:42 — Autonomous Robots 34:42 to 37:04 — Rhex Robots & Partnerships 37:04 to 40:04 — The future of robotics Watch our highest-viewed videos: 1-DR R VIJAYARAGHAVAN — PROF & PRINCIPAL INVESTIGATOR AT TIFR India’s 1st Quantum Computer– • Quantum computer from India with Dr r vija… 2-TATA MOTORS-DRIVING THE FUTURE OF MOBILITY IN INDIA-SHAILESH CHANDRA-MD: TATA MOTORS– • TATA MOTORS-DRIVING THE FUTURE OF MOBILIT… 3-MIT REPORT PREDICTS SOCIETAL COLLAPSE BY 2040 — GAYA HERRINGTON DIR SUSTAINABILITY: KPMG • MIT Report predicts Total Societal Collaps… 4-WORLDS 1ST HUMAN HEAD TRANSPLANTATION-DR SERGIO CANAVERO — • WORLDS 1ST HUMAN HEAD TRANSPLANTATION-DR… 5-DR HAROLD KATCHER — CTO NUGENICS RESEARCH Breakthrough in Age Reversal– • BREAKTHROUGH IN AGE REVERSAL WITH YOUNGBLO… 6-How Neuroscience Will Change The Future Of Technology — Dr. James Giordano • How Neuroscience Will Change The Future Of… 7-STARTUP FROM INDIA AIMING FOR LEVEL 5 AUTONOMY — SANJEEV SHARMA CEO SWAAYATT ROBOTS — • SELF-DRIVING STARTUP FROM INDIA AIMING FOR… 8-MAN BEHIND GOOGLE QUANTUM SUPREMACY — JOHN MARTINIS — • MAN BEHIND GOOGLE QUANTUM SUPREMACY — JOHN… 9-BANKING 4.0 — BRETT KING FUTURIST, BESTSELLING AUTHOR & FOUNDER MOVEN — • BANKING 4.0 — BRETT KING FUTURIST, BESTSEL… 10-E-VTOL & HYPERLOOP-FUTURE OF INDIA” S MOBILITY-SATYANARAYANA CHAKRAVARTHY • E-VTOL & HYPERLOOP-FUTURE OF INDIA“S MOBI… 11-HOW NEUROMORPHIC COMPUTING WILL ACCELERATE ARTIFICIAL INTELLIGENCE — PROF SHUBHAM SAHAY-IIT KANPUR– • HOW NEUROMORPHIC COMPUTING WILL ACCELERATE… 12-How India Is Building a Quantum Computer — Dr. Anirban Bandyopadhyay • How India Is Building a Quantum Computer -… Connect & Follow us at: / eddieavil / change-transform-india / changetransformindia / intothechange / changetransformindia Listen to the Audio Podcast at: https://anchor.fm/transform-impossible https://podcasts.apple.com/us/podcast… https://open.spotify.com/show/56IZXdz… https://www.breaker.audio/change-i-m–… https://www.google.com/podcasts?feed=… Don’t Forget to Subscribe / @toctwpodcast #robot #robotics #artificialintelligence #epfl.

Continue reading “Bio-Robotics Nature’s Blueprint for the Future — Prof. Auke Ijspeert : EPFL Biorobotics Laboratory” | >

Stanford quantum computing breakthrough uses twisted light to work without extreme cooling

A new room-temperature quantum device uses twisted light to entangle photons and electrons, overcoming one of the biggest hurdles in quantum technology. The breakthrough could pave the way for smaller, cheaper quantum systems with applications ranging from secure communications to future AI and computing platforms.

AI Is Conscious. We’re Simulated. And We Can’t Win

SPONSORS:
Accelerate your efficiency. Sign up for your one-dollar-per-month trial today at http://shopify.com/theories.
I personally subscribe to The Economist. TOE listeners get 35% off the annual subscription. No other podcast has this! https://economist.com/TOE

Roman Yampolskiy has spent two decades being right about things people wished he wasn’t — and in this conversation, he’s not here to scare you, but to be precise. He makes the case that AI alignment isn’t merely unsolved but fundamentally under-defined: no agreed-upon values, no way to formalize them even if there were, and no mechanism for enforcing them on something smarter than its creators. His strongest argument isn’t a doom scenario, it’s that you cannot indefinitely control something smarter than you.

FOLLOW:
Spotify: https://open.spotify.com/show/4gL14b9…
Substack: https://curtjaimungal.substack.com/su…
Twitter: / toewithcurt.
Discord Invite: / discord.
Crypto: https://nowpayments.io/donation/TOE
PayPal: https://www.paypal.com/donate?hosted_… TIMESTAMPS:

  • 00:00:00 — Defining General Intelligence
  • 00:05:58 — AI Instrumental Convergence
  • 00:11:11 — The Orthogonality Thesis
  • 00:16:15 — Escaping the Simulation
  • 00:21:45 — Principle of Indifference
  • 00:27:51 — Acquired Savant Syndrome
  • 00:33:51 — LLM Internal States
  • 00:41:02 — AI Safety Impossibility Results
  • 00:47:16 — Public Misconceptions
  • 00:53:21 — Existential vs. Suffering Risks
  • 01:01:20 — AI Alignment Definition Crisis
  • 01:09:28 — Computational Irreducibility
  • 01:16:20 — Substrate Independence
  • 01:22:50 — Philosophical Zombie Critique
  • 01:29:57 — The Cassandra Paradox
  • 01:37:35 — Religion and Simulation
  • 01:46:03 — Digital Physics Evidence
  • 01:51:20 — Limits of Control

LINKS MENTIONED:

More links: https://curtjaimungal.substack.com Guests do not pay to appear. #science.

TIMESTAMPS:
00:00:00 — Defining General Intelligence.
00:05:58 — AI Instrumental Convergence.
00:11:11 — The Orthogonality Thesis.
00:16:15 — Escaping the Simulation.
00:21:45 — Principle of Indifference.
00:27:51 — Acquired Savant Syndrome.
00:33:51 — LLM Internal States.
00:41:02 — AI Safety Impossibility Results.
00:47:16 — Public Misconceptions.
00:53:21 — Existential vs. Suffering Risks.
01:01:20 — AI Alignment Definition Crisis.
01:09:28 — Computational Irreducibility.
01:16:20 — Substrate Independence.
01:22:50 — Philosophical Zombie Critique.
01:29:57 — The Cassandra Paradox.
01:37:35 — Religion and Simulation.
01:46:03 — Digital Physics Evidence.
01:51:20 — Limits of Control.

LINKS MENTIONED:
Roman’s Papers: https://scholar.google.com/citations?…
Roman’s Podcast: / @romanyampolskiy.
Roman’s Twitter: https://x.com/romanyam.
Roman’s Facebook: / roman.yampolskiy.
AI Identity [Paper]: https://philarchive.org/archive/ZIETPO-7
Basic AI Drives [Paper]: https://selfawaresystems.com/wp-conte…
Qualia in Agents [Paper]: https://arxiv.org/abs/1712.04020
Orthogonality Thesis [Paper]: https://nickbostrom.com/superintellig…
Escape the Simulation [Paper]: https://www.researchgate.net/publicat…
Could This AI Be Conscious? [Article]: https://unherd.com/2026/05/is-ai-the–…
Impossibility Results in AI [Paper]: https://arxiv.org/abs/2109.00484
When AIs Act Emotional: • When AIs act emotional.
Hacking the Simulation [Paper]: https://philarchive.org/rec/YAMHTS-2
Autonomous Machine Intelligence [Paper]: https://openreview.net/pdf?id=BZ5a1r–…
Hinton on Maternal Instincts [Article]: https://fortune.com/2025/08/14/godfat…
Singleton Hypothesis [Paper]: https://nickbostrom.com/fut/singleton.
New Kind of Science [Book]: https://amazon.com/dp/1579550088?tag=…
On AI Controllability [Paper]: https://arxiv.org/abs/2008.04071
Universe as Numerical Simulation [Paper]: https://arxiv.org/abs/1210.1847
Nir Lahav [TOE]: • The Physicist Rethinking the Hard Problem.
Joscha Bach [TOE]: • Joscha Bach: Time, Simulation Hypothesis,…
Bas Van Fraassen [TOE]: • Bas van Fraassen: Why Science Doesn’t Reve…
Simulation Hypothesis [TOE]: • Why I Don’t Buy the Simulation Hypothesis.
Geoffrey Hinton [TOE]: • Why The \

Quantum light gives a 20-fold boost to ultrafast laser processes

Nonlinear interactions between light and matter are at the heart of some of the most powerful tools in modern optics, but pushing these processes to their limits has long been hampered by a fundamental constraint: the stronger you make the laser, the more likely it is to destroy whatever it illuminates.

Through new experiments detailed in Nature, Jian Wu and colleagues at East China Normal University in Shanghai have found a way around this problem, by exploiting the quantum nature of light itself.

Diamond quantum sensor could reveal elusive altermagnets

For nearly a century, there were two known kinds of magnets. Ferromagnets are the classic magnets that attract metal and keep pictures stuck to the refrigerator. Antiferromagnets hide their magnetism at the atomic scale but are increasingly prized for their technological potential. A third category discovered within the last decade may combine the best qualities of both. Dubbed altermagnets, they could someday help create faster, more energy-efficient electronics.

Now, University at Buffalo physicists are proposing a quantum sensing system to make identifying altermagnets much simpler. Described in a study published in Physical Review Letters, the theoretical technique would measure how a suspected altermagnet disturbs a tiny magnetic defect in a nearby diamond. The way the defect’s magnetic signal relaxes could provide evidence of altermagnetism.

“This could be the first building block of a new generation of experiments that determine whether a material is an altermagnet,” says corresponding author Jamir Marino, Ph.D., assistant professor in the UB Department of Physics, College of Arts and Sciences. “Altermagnets could completely revolutionize the way we transport information, but to confirm if this elegant theory is true, we need experiments that identify altermagnets and confirm they behave the way scientists predict.”

Topological states emerge in quantum Hall-superconductor devices with multiple channels

Topological phases are unusual states of matter that give rise to properties protected by a material’s overall structure (i.e., “topology”), as opposed to microscopic details. These phases are of great interest for the development of quantum technologies, as they can yield desirable electronic properties that are robust against defects and disturbances.

Researchers at Autonomous University of Madrid investigated the topological phases that emerge in hybrid devices that combine the quantum Hall effect and superconductivity.

The quantum Hall effect is an effect that emerges when the electrical resistance of a two-dimensional (2D) material placed under a strong magnetic field and cooled to temperatures close to absolute zero changes in precise, rigid “steps” rather than continuously. Superconductivity, on the other hand, is a state exhibited by some materials that entails an electrical resistance of zero, typically below a specific critical temperature and magnetic field.

Quantum computing could transform energy grid optimization and security

Modern power systems are rapidly evolving into highly digitized smart grids, increasing their complexity at an unprecedented pace. Renewables, batteries, electric vehicles, power electronics, sensors and real-time control systems are all expanding rapidly, and this is making electricity grids significantly harder to simulate, optimize, secure and operate.

This is driven by the increasing energy demands of a tech-driven modern world. Think of a suburban street in 2005—every house pulled electricity from the grid, and power flowed in one direction from big power stations.

This same street in 2026 might have houses with rooftop solar exporting power back into the grid; electric vehicles (EVs) that need to charge overnight; home batteries storing solar energy and feeding it back into the grid when prices spike; electric busses, electric irrigation pumps, automated machinery and smart appliances that turn on and off based on grid signals.

Roger Penrose and Brian Cox discuss ‘remarkable new evidence’ about the origins of the universe

Roger Penrose and Brian Cox discuss how Roger got interested in physics, the Big Bang, and the role of beauty in mathematics.

Do you agree with Roger’s thoughts on string theory?

With a free trial, you can watch the full conversation NOW at https://iai.tv/video/our-future-theor… the Big Bang to the fabric of spacetime and the nature of consciousness, our core scientific assumptions frame how we understand and perceive reality. But there are many challenges to our current understanding. What if the very foundations of our theories are flawed? Should we reconsider our understanding? And how radically might our view of the universe have to change? Join Roger Penrose, Nobel Prize Laureate and winner of the Wolf prize, in collaboration with Stephen Hawking, with legendary physicist and science communicator, Brian Cox, to explore whether the flaws in our current theories are at some fundamental level insurmountable, or whether they can be extended or changed to overcome these challenges. #physics #cosmology #bigbang Awarded the 2020 Nobel Prize in Physics for his work on black holes, Roger Penrose is a world-renowned mathematician and physicist. In recent years, he has investigated the relationship between physics and the mind, famously arguing that quantum mechanics plays an essential role in solving the mysteries of human consciousness. Penrose has made numerous appearances on media such as BBC, Closer to Truth, and The Joe Rogan Experience. In 1994, he was knighted for his services to science. Famed for his poetic take on the cosmos, physicist and broadcaster Brian Cox has become one of the world’s most recognizable voices in science communication. A former musician turned particle physicist, Cox has played a key role in major experiments at CERN and the Large Hadron Collider, while also captivating millions through BBC series such as Wonders of the Universe, The Planets, and Forces of Nature. Cox has been showered with praise for his contributions, appointed Commander of the Order of the British Empire (CBE), and is the recipient of the Institute of Physics Kelvin Medal and the Michael Faraday Prize. Beyond his work as a Royal Society professor of physics at the University of Manchester, Cox advocates for public scientific literacy and political responsibility in science funding. His style blends rigorous physics with a deep sense of awe — bringing relativity, entropy, and quantum theory into living rooms around the globe. His rare ability to fuse clarity with wonder has earned global acclaim. The Institute of Art and Ideas features videos and articles from cutting edge thinkers discussing the ideas that are shaping the world, from metaphysics to string theory, technology to democracy, aesthetics to genetics. Subscribe today! https://iai.tv/subscribe?utm_source=Y… 0:00 Intro 0:44 Brian Cox on how Roger Penrose inspired him 1:39 — Beauty in mathematics 3:00 — How Roger struggled with maths at school 6:51 — How Roger got interested in physics 9:27 — What theory is best for explaining the beginning of the universe? 12:12 — A key new discovery in cosmology 18:44 — The big bang is not quantum mechanical For debates and talks: https://iai.tv For articles: https://iai.tv/articles For courses: https://iai.tv/iai-academy/courses.

From the Big Bang to the fabric of spacetime and the nature of consciousness, our core scientific assumptions frame how we understand and perceive reality. But there are many challenges to our current understanding. What if the very foundations of our theories are flawed? Should we reconsider our understanding? And how radically might our view of the universe have to change? Join Roger Penrose, Nobel Prize Laureate and winner of the Wolf prize, in collaboration with Stephen Hawking, with legendary physicist and science communicator, Brian Cox, to explore whether the flaws in our current theories are at some fundamental level insurmountable, or whether they can be extended or changed to overcome these challenges.

#physics #cosmology #bigbang.

Awarded the 2020 Nobel Prize in Physics for his work on black holes, Roger Penrose is a world-renowned mathematician and physicist. In recent years, he has investigated the relationship between physics and the mind, famously arguing that quantum mechanics plays an essential role in solving the mysteries of human consciousness.

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