When we observe distant celestial objects, there is a possible catch: Is that star I am observing really as reddish as it appears? Or does the star merely look reddish, since its light has had to travel through a cloud of cosmic dust to reach our telescope?
For accurate observations, astronomers need to know the amount of dust between them and their distant targets. Not only does dust make objects appear reddish (“reddening”), it also makes them appear fainter than they really are (“extinction”). It’s like we are looking out into space through a dirty window. Now, two astronomers have published a 3D map that documents the properties of dust all around us in unprecedented detail, helping us make sense of what we observe.
At least two mass extinction events in Earth’s history were likely caused by the “devastating” effects of nearby supernova explosions, a new study suggests.
Researchers at Keele University say these super-powerful blasts—caused by the death of a massive star—may have previously stripped our planet’s atmosphere of its ozone, sparked acid rain and exposed life to harmful ultraviolet radiation from the sun.
They believe a supernova explosion close to Earth could be to blame for both the late Devonian and Ordovician extinction events, which occurred 372 and 445 million years ago respectively.
Cosmologists have a standard set of puzzles they think about: the nature of dark matter and dark energy, whether there was a period of inflation, the evolution of structure, and so on. But there are also even deeper questions, having to do with why there is a universe at all, and why the early universe had low entropy, that most working cosmologists don’t address. Today’s guest, Anthony Aguirre, is an exception. We talk about these deep issues, and how tackling them might lead to a very different way of thinking about our universe. At the end there’s an entertaining detour into AI and existential risk.
Anthony Aguirre received his Ph.D. in Astronomy from Harvard University. He is currently associate professor of physics at the University of California, Santa Cruz, where his research involves cosmology, inflation, and fundamental questions in physics. His new book, Cosmological Koans, is an exploration of the principles of contemporary cosmology illustrated with short stories in the style of Zen Buddhism. He is the co-founder of the Foundational Questions Institute, the Future of Life Institute, and the prediction platform Metaculus.
In 1989, political scientist Francis Fukuyama predicted we were approaching the end of history. He meant that similar liberal democratic values were taking hold in societies around the world. How wrong could he have been? Democracy today is clearly on the decline. Despots and autocrats are on the rise.
You might, however, be thinking Fukuyama was right all along. But in a different way. Perhaps we really are approaching the end of history. As in, game over humanity.
Now there are many ways it could all end. A global pandemic. A giant meteor (something perhaps the dinosaurs would appreciate). Climate catastrophe. But one end that is increasingly talked about is artificial intelligence (AI). This is one of those potential disasters that, like climate change, appears to have slowly crept up on us but, many people now fear, might soon take us down.
John Smart has taught and written for over 20 years on topics like foresight and futurism as well as the drivers, opportunities, and problems of exponential processes throughout human history. John is President of the Acceleration Studies Foundation, co-Founder of the Evo-Devo research community, and CEO of Foresight University. Most recently, Smart is the author of Introduction to Foresight, which in my view is a “one-of-a-kind all-in-one instruction manual, methodological encyclopedia, and daily work bible for both amateur and professional futurists or foresighters.”
During our 2-hour conversation with John Smart, we cover a variety of interesting topics such as the biggest tech changes since our 1st interview; machine vs human sentience; China’s totalitarianism and our new geostrategic global realignment; Citizen’s Diplomacy, propaganda, and the Russo-Ukrainian War; foresight, futurism and grappling with uncertainty; John’s Introduction to Foresight; Alvin Toffler’s 3P model aka the Evo-Devo Classic Foresight Pyramid; why the future is both predicted and created despite our anti-prediction and freedom bias; Moore’s Law and Accelerating Change; densification and dematerialization; definition and timeline to general AI; evolutionary vs developmental dynamics; autopoiesis and practopoiesis; existential threats and whether we live in a child-proof universe; the Transcension Hypothesis.
My favorite quote that I will take away from this interview with John Smart is:
Is our universe still evolving? Could it be a Baby Universe, part of an endless cycle of cosmic creation and destruction? In this episode, we explore the Hourglass Universe Theory, the possibility of an Anti-Universe, and whether cosmic balance was disrupted by a universal force.
📺 Watch the full video here: 👉 • From Creation to Duality: The Mystery… ](• From Creation to Duality: The Mystery…
Join us as we uncover the scientific mysteries of the cosmos, linking quantum physics, mythology, and cosmology to explore the hidden nature of reality. 🌠✨
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Please note: The information shared on this channel does not claim to be absolute truth or supported by scientific evidence. It represents the author’s vision and serves as one of many alternative theories. You are free to believe in it—or not—depending on how closely it resonates with you. Our goal is to foster open-minded exploration while respecting all individuals. We aim to discuss topics freely, including religious, philosophical, and universal themes, without violating laws or causing offense to anyone’s emotions, religious beliefs, ethnic identity, or gender.
“The Future of Human Evolution: AI, Genetic Engineering, and the Rise of Post-Human Civilization”
What happens when human evolution is no longer shaped by nature but by artificial intelligence and genetic engineering? This story explores the rise of AI-enhanced humans in a futuristic medieval world, where the fusion of bioengineering, AI consciousness, and neural implants creates a post-human era. As civilizations embrace transhumanism, traditional humanity faces extinction, replaced by a new species of synthetic life. Will this AI-driven society achieve ultimate enlightenment, or will it lose the essence of what makes us human? The battle between future civilization, advanced technology, and those clinging to the past intensifies as digital immortality reshapes the meaning of existence. This cybernetic future forces us to question our identity—can genetic modification and AI singularity coexist with the soul of humanity? Witness the evolution of intelligence, the struggle between AI vs humanity, and the uncertain fate of a world where consciousness itself is no longer biological.
0:00 — Introduction: The Future of Human Evolution. 8:25 — AI & Genetic Engineering: Unlocking Human Potential. 16:50 — Ethical Dilemmas of Genetic Modification. 25:15 — The Rise of Engineered Intelligence. 33:40 — Genetic Enhancements & Social Stratification. 42:05 — AI in Education, Work, and Society. 50:30 — The Quest for Longevity & Immortality. 58:55 — Resistance Movements Against Enhancement. 1:07:20 — The First AI-Integrated Humans. 1:15:45 — The Breakdown of Traditional Humanity. 1:24:10 — Post-Human Civilizations & Digital Consciousness. 1:32:35 — The Divide Between Organic & Artificial Life. 1:41:00 — The Singularity & The End of Natural Evolution. 1:49:25 — What Comes After Humanity?
Sources. Bostrom, N. (2014). Superintelligence: Paths, Dangers, Strategies. Oxford University Press. Harari, Y. N. (2017). Homo Deus: A Brief History of Tomorrow. Harper. Kurzweil, R. (2005). The Singularity Is Near: When Humans Transcend Biology. Penguin. Tegmark, M. (2017). Life 3.0: Being Human in the Age of Artificial Intelligence. Knopf. Goertzel, B. (2020). Artificial General Intelligence: Concept, State of the Art, and Future Directions. Springer.
Interstellar material has been discovered in our solar system, but researchers continue to hunt for where it came from and how it got here. A new study led by Western astrophysicists Cole Gregg and Paul Wiegert recommends Alpha Centauri—the next closest solar system to ours—is a great place to start, highlighting how and why it’s a prime target.
The findings were published March 6 in The Planetary Science Journal.
Interstellar objects are astronomical material, like asteroids or comets, not gravitationally bound to a star. They can come from other solar systems and be thrown into interstellar space by collisions or be slingshotted by a planet or star’s gravity.
Asteroids that orbit close to the Earth inevitably cause us some anxiety due to the even remote possibility of a collision. But their proximity also offers ample opportunities to learn more about the universe. Ryugu, a 900-meter diameter asteroid in the Apollo belt, has recently proven useful in our search for signs of life’s precursors elsewhere in our solar system.
A team of researchers at Kyoto University have found evidence of salt minerals in samples recovered from Ryugu during the initial phase of Japan’s Hayabusa2 mission. The discovery of these deposits, containing sodium carbonate, halite, and sodium sulfates, suggest that liquid saline water once existed within a parent body of Ryugu.
Before examining the samples, the team expected that sample grains returned from the asteroid might contain substances not generally found in meteorites. They anticipated that these could be highly water-soluble materials, which readily react with moisture in Earth’s atmosphere and are difficult to detect unless examined in their pristine state as preserved in the vacuum of space.
