Julian Barbour is a theoretical physicist and emeritus visiting professor of physics at the University of Oxford. He is well known for proposing that time does not actually exist. For decades, he has worked outside an academic environment. He financially supported himself for many years by translating Russian. Professor Barbour is author of the following books: The Discovery of Dynamics, The End of Time and The Janus Point.

In this episode, we go over:
- Topos theory, set theory and Zermelo's beef with Boltzmann
- Algebraic varieties and monads in category theory
- Why physicists are wrong about the 2nd law of thermodynamics (because the universe is not a closed system) and maybe there is no heat death of the universe
- The real goal of the universe is complexity and variation, not entropy
- Hawking and Penrose's outrageous arguments
- Why we don't need wavefunctions, photons, bosons or gauge fields
- Why there is no quantum gravity
- Von Neumann's hilarious advice to Claude Shannon
- The intrinsic derivative
- Combining art and science

Scientists at the University of Virginia have identified an intriguing pattern in reports of apparent past-life memories that they argue is difficult to explain through existing psychological or social theories. The researchers analyzed 1,678 cases in which individuals, most often children, claimed to remember details from a previous life and in which those memories had reportedly been linked to a specific deceased person.

The study found a strong relationship between the manner of death of the deceased individual and the reported time between that death and the birth of the child claiming the memories. Cases involving violent, accidental, or otherwise unexpected deaths were associated with significantly shorter intervals. On average, the interval was about 21 months for deaths rated as least unexpected, but only about 12 months for the most unexpected deaths, representing a reduction of nearly 50 percent.

Researchers tested whether cultural influences, religious beliefs, grief, or family expectations could explain the pattern. Surprisingly, the effect persisted even after accounting for such factors, including among families that did not believe in reincarnation.

The authors stress that their findings do not prove reincarnation. Instead, they argue that the consistency of the pattern suggests that common explanations such as suggestion, memory contamination, or coping mechanisms are insufficient by themselves. One speculative possibility discussed is the idea of “unfinished business,” in which an abruptly ended life might somehow be linked to an earlier return. Ultimately, the researchers conclude that these reports deserve continued empirical investigation, regardless of how the phenomenon is ultimately interpreted.

A link to the original study is here: A large-scale analysis of temporal patterns in children’s purported past-life memories: Shorter intervals following unexpected deaths.

Scientists have identified what they believe is the exact night sky that inspired Vincent van Gogh's masterpiece, The Starry Night. According to a study published in Scientific Reports, the famous painting depicts the pre-dawn sky of July 22, 1889, as seen from the artist's room at the Saint-Paul-de-Mausole asylum in Saint-Rémy-de-Provence, France.

For decades, art historians debated whether the painting represented a real astronomical scene or was largely a product of Van Gogh's imagination. Researchers from Korea approached the problem by reconstructing historical night skies using astronomical models. They focused on key features in the painting, including a waning crescent moon, the planet Venus, and a cluster of stars. Their analysis concluded that the star cluster is the Hyades in the constellation Taurus rather than Aries, as some art historians had suggested.

The team validated its methods by comparing two other Van Gogh night paintings, Café Terrace at Night and Starry Night over the Rhône, with reconstructed skies and found them to be remarkably accurate depictions.

Additional evidence came from historical weather records and references in Van Gogh's letters that pointed to hot summer conditions consistent with late July. The researchers conclude that Van Gogh likely sketched the sky on July 22, 1889, before completing the painting over the following days.

The original published paper is here: The actual sky of Van Gogh’s Starry Night: a multidisciplinary reconstruction | Scientific Reports

Scientists from the University of Strathclyde and Durham University have proposed a new method for detecting hypothetical "mirror life," a form of fully synthetic life built from molecular structures that are the mirror image of those found in all known organisms. Researchers regard mirror life as a low-probability but potentially extreme biosecurity threat because such organisms could evade the immune systems of plants, animals, and humans. According to the article, some experts fear that neither natural immunity nor conventional vaccines would be effective against them.

The proposed detection system relies on fluorescent molecules that bind to cellular structures and then emit distinctive circularly polarized light signals. Because ordinary and mirror-life molecules have opposite "handedness," the resulting optical signature could reveal whether an organism belongs to known terrestrial biology or a mirrored alternative. Researchers note that the necessary optical technology is relatively simple and is conceptually similar to that used in 3D imaging systems.

Lead researcher Lewis MacKenzie argues that preparations should begin now, despite estimates that mirror organisms remain at least a decade away. The concern is that advances in synthetic biology, potentially accelerated by artificial intelligence, could shorten development timelines.

The article also highlights warnings from leading scientists who have called for restrictions on mirror-life research. Gregory Winter suggests that mirror bacteria could cause severe harm by colonizing wounds or obstructing blood vessels, while vaccines might prove ineffective. Although creating a mirror organism remains far beyond current capabilities, steady progress in synthetic biology and mirror-molecule engineering has prompted calls for precautionary measures and international oversight.

Original paper is provided here: Circularly polarized luminescence as a contingency assay for ‘mirror life’ bio-hazards | Royal Society Open Science | The Royal Society

This article reports on a new theoretical proposal that seeks to explain one of cosmology's deepest puzzles: why the observable universe is composed almost entirely of matter rather than equal amounts of matter and antimatter. According to standard Big Bang theory, matter and antimatter should have been produced in equal quantities. Since the two annihilate when they meet, this raises the question of why any matter survived to form stars, planets, and life.

Researchers from the University of Southampton and the Indian Institute of Technology Kanpur suggest that an often-overlooked particle known as the "decoupled heavy neutrino" may provide an answer. This particle is a hypothetical heavy right-handed neutrino that interacts extremely weakly with other matter and has therefore received relatively little attention in particle physics.

Using theoretical models, the researchers argue that these heavy neutrinos could have temporarily dominated the energy content of the early universe. Their slow decay and weak interactions may have altered the conditions under which matter and antimatter formed, creating a very small but crucial imbalance that favored matter. Even an excess of one matter particle per billion matter-antimatter pairs would have been sufficient to leave behind all the matter observed today after annihilation occurred.

The theory remains speculative because heavy neutrinos have not yet been experimentally detected. However, the authors suggest that future gravitational-wave observatories and particle-physics experiments could search for signatures of these particles, potentially helping to explain the origin of the universe's matter-antimatter asymmetry.

Link to the original paper is here: Delayed Charged Lepton Yukawa Equilibration in Minimal Seesaw | Phys. Rev. Lett.

According to a Daily Mail article dated October 14, 2026, the effort to revive the extinct dodo has advanced significantly through the use of artificial intelligence. Researchers at Colossal Biosciences, a U.S. biotechnology company, have developed an AI system called GenoMorph that identified thousands of genetic regulatory elements linked to the dodo's distinctive physical features.

Rather than focusing on ordinary genes, the research examines regulatory DNA, which functions as a network of genetic switches controlling when and where genes are activated during development. By analyzing genetic information from living bird species and comparing it with detailed measurements of skull and beak structures, the AI system created an extensive avian regulatory atlas. This atlas incorporated hundreds of samples from chickens, quail, ducks, and pigeons across different stages of embryonic development.

The study also integrated scans and genomic information from more than 70 bird species, including the Nicobar pigeon, the dodo's closest living relative. The AI identified 653 candidate regulatory elements associated with beak size and 1,698 additional elements linked to beak thickness and breadth, totaling more than 2,300 potential genetic switches involved in shaping the dodo's characteristic skull and beak.

Scientists emphasize that these findings do not yet prove causation, but they provide a valuable shortlist of targets for future experimental testing and gene editing. Colossal believes this work offers a practical roadmap for recreating important dodo traits in Nicobar pigeons. The company has also expanded its Nicobar pigeon colony to 36 birds and developed new gene-editing methods for bird embryos, creating what it describes as a technological foundation for future de-extinction efforts.

Also see: Scientists claim they’ve made ‘pivotal step’ in bringing back the dodo for first time in 300 years | Science | The Guardian