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The biological switch that could turn neuroplasticity on and off in the brain

The Conversation Weekly podcast is taking a short break in August. In the meantime, we’re bringing you extended versions of some of our favourite interviews from the past few months.

This week, how researchers discovered a biological switch that could turn on and off neuroplasticity in the brain – the ability of neurons to change their structure. We speak to Sarah Ackerman, a postdoctoral fellow at the Institute of Neuroscience and Howard Hughes Medical Institute at the University of Oregon, about what she and her team have found and why it matters.

This episode of The Conversation Weekly features an extended version of an interview first published on April 29. The Conversation Weekly is produced by Mend Mariwany and Gemma Ware, with sound design by Eloise Stevens. Our theme music is by Neeta Sarl. You can sign up to The Conversation’s free daily email here. Full credits for this episode available here.

Further reading: Astrocyte cells in the fruit fly brain are an on-off switch that controls when neurons can change and grow, by Sarah DeGenova Ackerman, University of OregonSwimming gives your brain a boost – but scientists don’t know yet why it’s better than other aerobic activities, by Seena Mathew, University of Mary Hardin-BaylorWhat is brain plasticity and why is it so important?, by Duncan Banks, The Open University.

Grimes Says She Asked Elon Musk Why He’s So Obsessed With Trans People

Electronic music artist, generative AI enthusiast and on-off Elon Musk partner Claire “Grimes” Boucher seems to want to build bridges between the tech billionaire and the trans community he’s alienated so relentlesslly.

In a wide-ranging new interview with Wired, Boucher mentioned that she’d had a “big, long conversation” with her kids’ dad about “the trans thing,” and came to a similar conclusion as she made when publicly replying to one of his transphobic tweets: that bigotry isn’t in his “heart.”

“I was like, ‘I want to dissect why you’re so stressed about this,’” the artist, who also goes by the letter c, told the magazine. “Getting to the heart of what Elon says helps me get to the heart of what other people’s issues are, because it’s this über guy situation.”

Japan Wants to Build the City of the Future

This may be a great idea. Currently watching. Several countries are trying this.


The race is on to build the world’s first floating city.
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10 AI Tools THAT CHANGE EVERYTHING!

AI really is getting bigger, better and crazier, and in this video I’ll show you the top 10 AI tools that are changing EVERYTHING!! You Guys have gotta try them out and let me know in the comments which AI was your favorite one!

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AI ART 2.0 — https://clipdrop.co/
AI MIXING — https://www.ostagram.me/
AI PHOTO EDITING — https://www.adobe.com/uk/products/photoshop/
AI EMAILS — https://workspace.google.com/labs-sign-up/
AI QR CODES — https://www.qrcraft.xyz/
AI DEEPFAKES — https://reface.ai/unboring/
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The Identity Of E5 Revealed | Reduced Epigenetic Age By More Than 50%

So past the 7 minute mark we see a competing interest may have stumbled upon the same thing so Katcher and gang are starting a company to commercialize E5.


Here we review a preprint from Dr Katcher and Dr Horvath giving more detail on the experiments which showed a 54% epigenetic rejuvenation in rats and reveals the source of E5 and the processing involved.

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00:00 Review of paper.

Thieves Go High-Tech To Steal Today’s Computerized Cars

This post is also available in: he עברית (Hebrew)

Today’s cars can contain over 100 computers and millions of lines of software code, which are all networked together and can operate all aspects of your vehicle. It is only logical that following this shift, car theft has gone high-tech.

According to Techxplore, the computers in a vehicle can be divided into four categories; The majority are dedicated to operating the vehicle’s drive train-controlling the fuel, the battery, monitoring emissions, and operating cruise control. The second category is for safety-collecting data from in and around the vehicle for functions like lane correction, automatic braking, and backup monitoring. The third category is information-entertainment systems that provide music and video and can interface with personal devices through Bluetooth. The last category is the navigation system.

Earth Over The Next Billion Years

Our lifespans might feel like a long time by human standards, but to the Earth it’s the blink of an eye. Even the entirety of human history represents a tiny slither of the vast chronology for our planet. We often think about geological time when looking back into the past, but today we look ahead. What might happen on our planet in the next billion years?

Written and presented by Prof David Kipping, edited by Jorge Casas.

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► 00:00 Hill — All Flesh Is as the Grass [https://open.spotify.com/track/1WuMK4qy9tUSGMINoEClxL?si=5635838259b34fa4]
► 03:56 Hill — The Great Alchemist [https://open.spotify.com/track/3PAx36jIsKiQMT9CQsRk4G?si=035fc819505445a1]
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► 14:57 Indive — Halo Drive.

::Chapters::

Post Eternity Part 2: Boltzmann Brains

https://youtube.com/watch?v=wc8qRKm9MLs&feature=share7

Boltzmann brain is another bizarre consequence of laws of physics. It’s a configuration of matter, similar to our brains; a statistical fluctuation risen out of thermal equilibrium, a conscious observer created by a sudden decrease in entropy, having false memories of a grand structure exactly like our universe.

Given enough time, every single possibility allowed by the physical laws in our most likely closed universe must eventually occur, including one with a fluctuated brain, sitting in the middle of nowhere, having the exact same thoughts that you are having right now.

Boltzmann brains are speculative and inevitable at the same time. There is a serious chance that you might be indeed one of those brains, experiencing your false memories within a fake universe which is nothing but a delusion.

Sources:
(Matthew Davenport, Ken D. Olum) Are there Boltzmann brains in the vacuum.
https://arxiv.org/abs/1008.

(Sean M. Carroll) Why Boltzmann Brains Are Bad.
https://arxiv.org/abs/1702.

Musics:

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