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YON - Jan C. Hardenbergh

@bodysurfinyon.bsky.social
15 followers 17 following 65 posts

Grandfather First Parish Board Town Historian Rendering Technologist Student of Consciousness jch.com/notes

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YON - Jan C. Hardenbergh @bodysurfinyon.bsky.social · 09/10/2026
AI consciousness depends on how you define consciousness. www.jch.com/jch/notes/C/...
jch.com
Eight Definitions of Consciousness
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YON - Jan C. Hardenbergh @bodysurfinyon.bsky.social · 09/10/2026
www.jch.com/jch/notes/C/...
jch.com
Metrics for Deciding Whether AI Is Conscious
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YON - Jan C. Hardenbergh @bodysurfinyon.bsky.social · 08/10/2026
www.jch.com/jch/notes/C/...
jch.com
Compatibility of Six Theories of Consciousness
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YON - Jan C. Hardenbergh @bodysurfinyon.bsky.social · 17/09/2026
An Al is not a natural entity and therefore it cannot have moral rights, even if it possibly has consciousness.
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YON - Jan C. Hardenbergh @bodysurfinyon.bsky.social · 11/09/2026
For things you love, it should take time and a friction that flow finds fun.
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YON - Jan C. Hardenbergh @bodysurfinyon.bsky.social · 27/07/2026
As the Heart Pumps Blood, the Brain Pumps Information, a metaphor for predictive coding: www.jch.com/jch/notes/pc...
jch.com
Brain Pumps Info
As the heart pumps blood, the brain pumps information, Predictive Coding, Brain, Large Scale Brain Networks, Predictive Processing, Allostasis
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YON - Jan C. Hardenbergh @bodysurfinyon.bsky.social · 27/06/2026
Democratic Socialism is closer to ideal Capitalism than the Billionaire Capitalism we have in the U.S. now.
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YON - Jan C. Hardenbergh @bodysurfinyon.bsky.social · 21/06/2026
Trump is a corrupt graffiti monster desecrating our sacred ground
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YON - Jan C. Hardenbergh @bodysurfinyon.bsky.social · 06/06/2026
Consciousness is Awareness. Period. Awareness of what? Awareness of the mental model of reality that we have constructed. Any creature that has such a model to be aware of is conscious.
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YON - Jan C. Hardenbergh @bodysurfinyon.bsky.social · 14/05/2026
250 years ago, America was born. It was a limited democracy and it is in trouble now. Celebrate it and all of Sudbury, MA 01776 history THIS Saturday 5/16 info: sudbury.ma.us/250
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YON - Jan C. Hardenbergh @bodysurfinyon.bsky.social · 29/09/2025
Please be counted on 10/18.
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YON - Jan C. Hardenbergh @bodysurfinyon.bsky.social · 28/09/2025
antiscience—that is politically and ideologically motivated opposition to any science that threatens powerful special interests and their political agendas. arstechnica.com/science/2025...
arstechnica.com
The current war on science, and who’s behind it
A vaccine developer and a climate scientist walk into a bar write a book.
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Reposted by YON - Jan C. Hardenbergh
International Brain Laboratory @intlbrainlab.bsky.social · 03/09/2025
Two flagship papers from the International Brain Laboratory, now out in ‪@Nature.com‬: 🧠 Brain-wide map of neural activity during complex behaviour: doi.org/10.1038/s41586-025-09235-0 🧠 Brain-wide representations of prior information in mouse decision-making: doi.org/10.1038/s41586-025-09226-1 +
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Reposted by YON - Jan C. Hardenbergh
Philip Bump @pbump.com · 13/09/2025
Extremist murders by ideology, 2013 to 2022. www.pbump.net/o/reassessin...
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YON - Jan C. Hardenbergh @bodysurfinyon.bsky.social · 10/09/2025
This paper is amazing. “Here we report a comprehensive set of recordings from 621,733 neurons recorded with 699 Neuropixels probes across 139 mice in 12 laboratories .. covered 279 brain areas in the left forebrain and midbrain and the right hindbrain and cerebellum. www.nature.com/articles/s41...
nature.com
A brain-wide map of neural activity during complex behaviour - Nature
The International Brain Laboratory presents a brain-wide electrophysiological map obtained from pooling data from 12 laboratories that performed the same standardized perceptual decision-making task i...
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YON - Jan C. Hardenbergh @bodysurfinyon.bsky.social · 30/08/2025
Latin ars liberalis, which literally means “the trade skills of a free person”. www.theguardian.com/commentisfre...
theguardian.com
The battle over US history reveals our education system’s key flaw | Katherine Kelaidis
By systematically devaluing the liberal arts, we are leaving students unprepared for the demands of democratic life
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YON - Jan C. Hardenbergh @bodysurfinyon.bsky.social · 14/06/2025
No Kings in Sudbury, MA, 01776! My guesstimate is just under 600 people in a Town with a population of about 20K or about 3% of the population.
600 people protesting along Rte 30
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YON - Jan C. Hardenbergh @bodysurfinyon.bsky.social · 31/05/2025
Thank the gods for en.m.wikipedia.org/wiki/Let_All...
en.m.wikipedia.org
Let All That We Imagine Be the Light - Wikipedia
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YON - Jan C. Hardenbergh @bodysurfinyon.bsky.social · 29/05/2025
Trump Harvard Derangement Syndrome is simply about free speech. If Harvard has the tenacity to stand up to him, others might, too.
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Reposted by YON - Jan C. Hardenbergh
Randall Stephens @randalljstephens.bsky.social · 21/05/2025
"You read books, eh?" A 1949 red scare Herblock cartoon about pressures on teachers that hits hard once again.
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YON - Jan C. Hardenbergh @bodysurfinyon.bsky.social · 25/05/2025
Go Crimson!!! www.nytimes.com/2025/05/23/o...
nytimes.com
Opinion | Harvard Derangement Syndrome
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YON - Jan C. Hardenbergh @bodysurfinyon.bsky.social · 19/05/2025
Trump gives in to Putin, again.
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YON - Jan C. Hardenbergh @bodysurfinyon.bsky.social · 29/03/2025
Trump “seeking to remove improper ideology” is straight out of Animal Farm.
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YON - Jan C. Hardenbergh @bodysurfinyon.bsky.social · 21/03/2025
General AI will displace even more jobs than Generative. Thus the need for Basic Income to make the economy & society to function.
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YON - Jan C. Hardenbergh @bodysurfinyon.bsky.social · 21/03/2025
Stakeholder capitalism is distributive and spread success throughout the workers, shareholders, and community. Shareholder capitalism is extractive, concentrating wealth into the hands of fewer and fewer billionaires. The result is inherently on democratic.
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Reposted by YON - Jan C. Hardenbergh
Brilliant Maps @brilliantmaps.bsky.social · 18/02/2025
A “Satellite” Map Of Middle-Earth brilliantmaps.com/a-satelli...
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YON - Jan C. Hardenbergh @bodysurfinyon.bsky.social · 16/02/2025
jch.com/history/250/...
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YON - Jan C. Hardenbergh @bodysurfinyon.bsky.social · 13/02/2025
I snow shoed to Tippling Rock. The first time I made it up there since I wiped out my Achilles on 9/11.
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YON - Jan C. Hardenbergh @bodysurfinyon.bsky.social · 12/02/2025
If you live in MA, please sign this letter of support for a bill to make phone free schools from the first bell to last bell, or simply "bell to bell" - www.maphonefreeschools.com
maphonefreeschools.com
MA Phone-Free Schools Coalition | Phone
The MA Phone-Free Schools Coalition is a group of organizations and individuals who believe phones and social media do not belong in our schools.
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YON - Jan C. Hardenbergh @bodysurfinyon.bsky.social · 28/01/2025
New Swoop
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YON - Jan C. Hardenbergh @bodysurfinyon.bsky.social · 24/01/2025
AI fact checking, aka RAG. Why is this so hard? arstechnica.com/ai/2025/01/a...
arstechnica.com
Anthropic builds RAG directly into Claude models with new Citations API
New feature allows Claude to reference source documents and reduce hallucinations.
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YON - Jan C. Hardenbergh @bodysurfinyon.bsky.social · 22/01/2025
Trump has a base that thinks pardoning cop killers is OK, but he has worn down good people to be enablers. #january6
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YON - Jan C. Hardenbergh @bodysurfinyon.bsky.social · 18/01/2025
I find the notion that that we should spend resources to ease the suffering of an AI silly. It’s a computer program.
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YON - Jan C. Hardenbergh @bodysurfinyon.bsky.social · 29/11/2024
Notes on The Consciousness Network by Cyriel Pennartz www.jch.com/jch/notes/Pe... #consciousness
jch.com
Consh Net
notes on books: The Consciousness Network: How the Brain Creates our Reality and The Brain's Representational Power: On Consciousness and the Integration of Modalities Cyriel M.A. Pennartz
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YON - Jan C. Hardenbergh @bodysurfinyon.bsky.social · 01/11/2024
“if you think you’ll be unaffected by a second Trump presidency because you aren’t undocumented or Puerto Rican or a Democratic politician, I encourage you to reassess. But I’ll get to that next week. Today I want to talk about more prosaic economic issues.” www.nytimes.com/2024/10/31/o...
nytimes.com
Opinion | Leopards Are Telling You That They Will Eat YOUR Face
Many of Donald Trump’s supporters are unprepared for what’s coming if he wins.
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YON - Jan C. Hardenbergh @bodysurfinyon.bsky.social · 18/10/2024
(Small l; small d) liberal democracy
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YON - Jan C. Hardenbergh @bodysurfinyon.bsky.social · 01/10/2024
MAGAites will believe anything.
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YON - Jan C. Hardenbergh @bodysurfinyon.bsky.social · 13/09/2024
It’s the economy www.nytimes.com/2024/09/12/o...
nytimes.com
Opinion | Harris Can Win on the Economy, but She Needs a Stronger Message
Optimistic words and some admirable proposals aren’t enough to overcome the discontent and anger that a large majority of Americans feel about the economy.
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YON - Jan C. Hardenbergh @bodysurfinyon.bsky.social · 22/07/2024
“ If Democrats want to beat MAGA, it’s not enough to say: Orange man bad. “ www.nytimes.com/2024/07/18/o...
nytimes.com
Opinion | What Democrats Need to Do Now
If Democrats hope to win, they have to take the MAGA worldview seriously and respectfully make the case, especially to working-class voters, for something better.
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YON - Jan C. Hardenbergh @bodysurfinyon.bsky.social · 15/07/2024
sketchplanations.com/equality-and...
sketchplanations.com
Sketchplanations - A weekly explanation in a sketch
Equality and equity are two important ideas that help us understand how to make things fair for everyone. Here's one way that helps me think about the difference between equity and equality: Equality ...
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YON - Jan C. Hardenbergh @bodysurfinyon.bsky.social · 12/07/2024
Joe should release his delegate and still compete for nomination. If Gretchen Witmer or another is chosen by the convention, that would be the best way forward. www.theatlantic.com/politics/arc...
theatlantic.com
A Scheme for Biden to Preserve His Dignity
Asking the country to trust him is no longer a credible option. He should release the delegates and run in an open convention.
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YON - Jan C. Hardenbergh @bodysurfinyon.bsky.social · 02/06/2024
fpsudbury.org/2024/04/26/y...
fpsudbury.org
Year to Save the Planet with Jim Scott | First Parish of Sudbury
Join us for The Year to Save the Earth—a mix of powerful songs and beautiful, projected images!
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YON - Jan C. Hardenbergh @bodysurfinyon.bsky.social · 25/04/2024
Netanyahu is a scoundrel who cares more about staying out of jail and hence prolonging the war than he does about the long term security of Israel. www.nytimes.com/2024/04/24/u...
nytimes.com
Netanyahu Calls Student Protests Antisemitic and Says They Must Be Quelled
“What’s happening in America’s college campuses is horrific,” the Israeli prime minister said in a televised statement. “Antisemitic mobs have taken over leading universities.”
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YON - Jan C. Hardenbergh @bodysurfinyon.bsky.social · 21/01/2024
New source for neuroscience news. www.thetransmitter.org/brain-imagin...
thetransmitter.org
Name this network: Addressing huge inconsistencies across studies
Entrenched practices have stymied efforts to build a universal taxonomy of functional brain networks. But a new tool to standardize brain-imaging findings could bring us a step closer.
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YON - Jan C. Hardenbergh @bodysurfinyon.bsky.social · 15/12/2023
Hello World
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