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How Human Consciousness Evolved.
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Daniel C. Dennett is the author of Intuition Pumps and Other Tools for Thinking, Breaking the Spell, Freedom Evolves, and Darwin’s Dangerous Idea and is University Professor and Austin B. Fletcher Professor of Philosophy, and Co-Director of the Center for Cognitive Studies at Tufts University. He lives with his wife in North Andover, Massachusetts, and has a daughter, a son, and a grandson. He was born in Boston in 1942, the son of a historian by the same name, and received his B.A. in philosophy from Harvard in 1963. He then went to Oxford to work with Gilbert Ryle, under whose supervision he completed the D.Phil. in philosophy in 1965. He taught at U.C. Irvine from 1965 to 1971, when he moved to Tufts, where he has taught ever since, aside from periods visiting at Harvard, Pittsburgh, Oxford, and the École Normale Supérieure in Paris.

His first book, Content and Consciousness, appeared in 1969, followed by Brainstorms (1978), Elbow Room (1984), The Intentional Stance (1987), Consciousness Explained (1991), Darwin’s Dangerous Idea (1995), Kinds of Minds (1996), and Brainchildren: A Collection of Essays 1984–1996. Sweet Dreams: Philosophical Obstacles to a Science of Consciousness, was published in 2005. He co-edited The Mind’s I with Douglas Hofstadter in 1981 and he is the author of over three hundred scholarly articles on various aspects on the mind, published in journals ranging from Artificial Intelligence and Behavioral and Brain Sciences to Poetics Today and the Journal of Aesthetics and Art Criticism.

Dennett gave the John Locke Lectures at Oxford in 1983, the Gavin David Young Lectures at Adelaide, Australia, in 1985, and the Tanner Lecture at Michigan in 1986, among many others. He has received two Guggenheim Fellowships, a Fulbright Fellowship, and a Fellowship at the Center for Advanced Studies in Behavioral Science. He was elected to the American Academy of Arts and Sciences in 1987.

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Chapters.
00:00 Intro.
03:36 Dr Greg Fahy Thymus regeneration.
15:24 BiOptimizers.
16:46 Dr Harold Katcher Young Porcine Exosomes.
19:40 Nicolas & Nina Taking Dr Katcher’s results to clinical trials.
22:48 Dr Hans Keirstead Stem cell secretome.
29:50 Tom Benson Mitochondrial transplants.
37:30 Dr Alessio Lanna Rejuvenating the immune system.

🌐Links in this video.

Artificial food colours — the kind you find in candies, drinks and processed meats — are now under international scrutiny for possibly causing cancer, allergic reactions and behavioural issues. What can you do to keep your food safe?

There’s something undeniably attractive about the colour red. It’s powerful, bold and assertive on the lips; appetising in food and on restaurant billboards; and certainly hard to miss on a traffic signal — or so we’d hope!

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In a major leap toward sustainable energy, a team of Japanese researchers has developed an artificial photosynthesis system that could help generate hydrogen and oxygen from just water and light. The breakthrough is thanks to a new type of hydrogel, which mimics the natural process of photosynthesis and performs these reactions without requiring external energy. This innovation opens up exciting possibilities for clean energy production, potentially transforming the way we think about renewable resources.

Artificial photosynthesis has long been a goal for scientists looking to replicate the natural process plants use to convert light into energy. The concept is simple in theory: use light to drive chemical reactions that produce useful energy, such as hydrogen. However, previous attempts to harness this process have been hampered by the need for external energy to trigger the reactions, making the systems inefficient and difficult to scale.

Enter hydrogels —a promising new solution. These polymer-based materials are capable of responding to external stimuli like temperature, light, and pH. The challenge, however, has been that these materials often suffer from self-aggregation, where the molecules clump together and hinder the energy conversion process. The Japanese researchers, however, have overcome this obstacle by designing a hydrogel that maintains the precise arrangement of its molecules, enabling a more effective energy transfer.

New observations from the National Science Foundation National Radio Astronomy Observatory’s (NSF NRAO) Karl G. Jansky Very Large Array (NSF VLA) provide compelling evidence supporting a universal mechanism for the collimation of astrophysical jets, regardless of their origin.

The new study, published in The Astrophysical Journal Letters, reveals the presence of a helical magnetic field within the HH 80–81 protostellar jet, a finding that mirrors similar structures observed in jets emanating from supermassive black holes.

Jets, powerful, highly collimated outflows of matter and energy, are observed across a vast range of scales in the universe. From the supermassive black holes at the centers of galaxies to the young stars in our own Milky Way, these jets play a crucial role in the evolution of their host systems. However, the precise mechanism that guides these jets and prevents them from dispersing into space has remained a long-standing puzzle.

In today’s AI news, ElevenLabs said on Thursday it has raised $180 million in a new funding round that triples the voice cloning artificial intelligence startup’s valuation to $3.3 billion. The Series C funding round was co-led by Andreessen Horowitz and Iconiq Growth, with participation from additional new investors.

On Thursday, OpenAI announced that it is deepening its ties with the US government through a partnership with the National Laboratories and expects to use AI to “supercharge” research across a wide range of fields to better serve the public.

“This is the beginning of a new era, where AI will advance science, strengthen national security, and support US government initiatives,” OpenAI said.

In other advancements, Cerebras Systems announced today it will host DeepSeek’s breakthrough R1 artificial intelligence model on U.S. servers, promising speeds up to 57 times faster than GPU-based solutions while keeping sensitive data within American borders. The move comes amid growing concerns about China’s rapid AI advancement and data privacy.

And, the US Copyright Office issued AI guidance this week that declared no laws need to be clarified when it comes to protecting authorship rights of humans producing AI-assisted works. “Questions of copyrightability and AI can be resolved pursuant to existing law, without the need for legislative change,” the Copyright Office said.

For humanity to explore space and distant worlds, we will need to construct enormous artificial habitats in space with diverse ecologies.

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