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AI is the Great Filter

Artificial intelligence is now finding planets human astronomers missed and scanning for alien signals 600 times faster than ever before.
Yet the more powerful our search tools become, the louder the silence from the cosmos grows.

This video explores why the same technology helping us look for extraterrestrial life may also explain why we cannot find any.

We examine the Great Filter hypothesis, the mathematics of self-replicating probes, and the growing consensus that any aliens out there would be machines, not biological beings.

From Matrioshka brains to the aestivation hypothesis to the Dark Forest, the universe may be hiding minds we cannot recognise, or warning us about a test every civilisation faces.

Chapters.

00:00 — Intro.

Continue reading “AI is the Great Filter” | >

New rules for used prosthetic feet could curb ‘medical equipment graveyards’

Researchers have proposed new standards into the decades-old prosthetic donations market, improving the quality of lower limb prosthetic feet by two-thirds—a major quality of life boost for recipients.

An interdisciplinary team of charities, prosthetists and academics led by King’s College London designed and implemented the very first set of standardized regulations for exporting prosthetic feet to the Global South, reducing unusable donations from 16% to 5%.

In so doing, the team have laid the foundation for improved prosthetics provision in the UK and an ethical framework for a global circular economy of prosthetics—the first of its kind.

7 Terrifying Theories That Suggest Aliens Actually Exist

In 1995, when Michel Mayor and Didier Queloz confirmed the first exoplanet orbiting a Sun-like star, the discovery answered one question but ignited a far deeper one: if planets are everywhere, could life be as well. For decades, this remained speculation, until a new generation of instruments transformed astronomy into something far more intimate. Using the Hubble Space Telescope and later the far more powerful James Webb Space Telescope, scientists began analyzing the atmospheres of distant worlds by capturing the faint starlight filtering through them, decoding chemical fingerprints from across hundreds of light-years.

Every Theory About Why We Haven’t Found Aliens Yet Explained

Why haven’t we found aliens yet? From the Fermi Paradox to the Great Filter, the Dark Forest theory, rare Earth, simulation theory, and more — here’s every major explanation for why the universe seems so silent.

00:00 The Fermi Paradox.
00:54 The Great Filter.
01:45 The Rare Earth Hypothesis.
02:40 The Dark Forest Theory.
03:36 The Zoo Hypothesis.
04:34 The Self-Destruction Filter.
05:35 The Simulation Hypothesis.
06:33 The Communication Gap.
07:35 The Interstellar Distance Problem.
08:35 The Short Window Problem.
09:32 The Planetarium Hypothesis.
10:30 The Transcension Hypothesis

10 Chilling Theories About Why Aliens Haven’t Contacted Earth

Why haven’t aliens contacted Earth?
The universe contains hundreds of billions of galaxies, each filled with billions of stars and potentially habitable planets. Yet despite the vastness of the cosmos, we have never detected a single confirmed extraterrestrial civilization.
This mystery is known as the Fermi Paradox.

In this video, we explore 10 chilling theories that attempt to explain the silence of the universe — from the terrifying Dark Forest Hypothesis to the existential threat of the Great Filter.

Some theories suggest aliens are hiding.
Others suggest they are waiting.
And some suggest something far more disturbing.

If any of these theories are true, humanity may not be alone… but we may wish we were.

Subscribe for more videos about space, science, and the mysteries of the universe.

Revolutionary Muscle & Fat Therapies: Future of Body Augmentation

This gene therapy company says its muscle-building treatment could last around 5 years.
The surprising part?
They believe the fastest path to market may be cosmetic enhancement using consumer demand to accelerate therapies for frailty and age-related muscle loss.

https://www.oisinbio.com/

Fear memories fade faster when brain immune cells engage key neurons, study suggests

Post-traumatic stress disorder (PTSD) and anxiety disorders are often characterized by fearful responses in specific situations that the mind learns to view as threatening. These fearful responses typically emerge following traumatic events or challenging life experiences, which prompt the brain to form unhelpful associations between specific stimuli and distressing events.

The fearful responses associated with PTSD or anxiety disorders can gradually diminish via a process known as fear extinction. This process entails the repeated exposure to a situation or stimulus perceived as threatening, but without any danger arising.

Understanding the neurobiological processes that support fear extinction could be very valuable, as it could help to devise new therapeutic strategies for treating symptoms of PTSD and anxiety disorders. While many past studies explored the role of neurons in fear extinction, fewer investigated the contribution of microglia, immune cells that reside in the brain and spinal cord.

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