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Posts by Steve Barrera

AI Fell for a Fake Disease
AI Fell for a Fake Disease YouTube video by Museum of Science

Scientists invented a fake disease, and AI fell for it.

Researchers in Sweden created a fictional itchy eye condition called “bixonimania” to test how easily false medical information could spread through AI systems and scientific literature. youtube.com/shorts/bhaKg...

1 day ago 38 20 3 4
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What does a black hole sound like? 🎤🎶🧪

Astrophysicist @erikahamden.bsky.social breaks down how the supermassive black hole at the center of the Perseus galaxy cluster releases energy into the surrounding hot gas, generating enormous pressure waves that ripple through the cluster.

1 week ago 42 15 5 0

This looks great.

"Diaries, sketchbooks, common-places, notebooks, ledgers and ships' logs: how the blank book changed the way we think, and helped us change the world."

The Notebook: A History of Thinking on Paper

#History #Notebooks #Journal #Journaling #Planners

2 weeks ago 18 6 0 1
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Artemis II — Live Mission Dashboard Real-time mission tracking for NASA's Artemis II crewed lunar flyby. OEM ephemeris data, 3D trajectory, space weather, crew profiles, and news feeds.

On good news, Luna flyby is happening over the next day, can follow live telemetry here, live radio coms, and a the moment the astronauts are describing the approach to the moon and what they see
artemis-live-dashboard.vercel.app

2 weeks ago 19 8 0 2
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Google Has a Secret Reference Desk. Here's How to Use It. 40 Google features to find exactly what you need, the alternative search engines that do things Google won't, and the reference desk framework underneath all of it.

This is a great list of techniques for getting real information out of a Google search and avoiding AI slop and paid results.
(One thing not included is that if you add "-ai" to a search, you block the AI summary) cardcatalogforlife.substack.com/p/google-has...

4 weeks ago 2144 1015 57 112

Saving to dig into after exams.

1 month ago 1 0 0 0

It brings me some solace to know that whatever's happening down here, there are still some absolutely incredible human-made and human-driven robots wandering around Mars, looking at cool rocks and dirt and sending us pictures just because we're curious about planets and our own origins in the cosmos

1 month ago 1860 304 26 3
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Digits of pi encoded as colours, arranged as a spiral with the symbol pi in the middle

Digits of pi encoded as colours, arranged as a spiral with the symbol pi in the middle

Happy #PiDay!

Here's the first 1,000 digits of pi encoded as colours 🎨 made with #RStats

1 month ago 79 15 2 1
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Texting daily with a random human peer is more effective at reducing loneliness than texting with a highly supportive chatbot.

Next time you feel lonely reach out to a human, any human.
www.sciencedirect.com/science/arti...

1 month ago 126 57 6 7
Screenshot of result that says "Your deltaE_OK JND 0.00080". Underneath it says "This shouldn't be possible. I'm not saying you cheated, but not not saying that."

Screenshot of result that says "Your deltaE_OK JND 0.00080". Underneath it says "This shouldn't be possible. I'm not saying you cheated, but not not saying that."

I can't get my result to share properly so you get a screenshot.

www.keithcirkel.co.uk/whats-my-jnd...

1 month ago 33 2 10 2

Critical thinking is under serious threat from large language models/AI. Uni administrators are too prone to accept tech hype! (plus it can be wrong, steals IP, has devasting environment/energy impacts). @jessicacalarco.com made a great one-pager I share with students (plus effective model of comms)

1 month ago 132 65 4 2
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Sycophantic AI distorts reality by returning responses that are biased to reinforce existing beliefs.

"sycophantic AI distorts belief, manufacturing certainty where there should be doubt."

Unbiased sampling produces discovery rates 5X higher! arxiv.org/pdf/2602.14270

1 month ago 29 14 1 2

We show that synesthesia is sensory and automatic in nature: the pupil scales with the brightness of experienced synesthetic colors. doi.org/10.7554/eLif...
Now in its new dress @elife.bsky.social (convincing & valuable in round 1).
If anyone wants to pick up the method, happy to share & explain!

1 month ago 86 25 4 0
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Data Visualization A Practical Introduction

Here’s a full draft of the upcoming second edition of my “Data Visualization: A Practical Introduction”: socviz.co

1 month ago 571 185 13 14
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Rubin Observatory has started paging astronomers 800,000 times a night Asteroids, exploding stars, and feasting black holes swarm in the first-ever batch of nightly alerts from the Vera C. Rubin Observatory in Chile

Asteroids, exploding stars, and feasting black holes swarm in the first-ever batch of nightly alerts from the Vera C. Rubin Observatory in Chile

1 month ago 526 103 18 6
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Why We Should Be Reading Paul Churchland Right Now The more I get into philosophical and philosophy-adjacent discussions of current-generation "artificial intelligence" (large language models and the like), the more dismayed I am not to see any discus...

Why I think, in the current A.I. moment, we should be reading Paul Churchland. #philsky #philsci

thehangedman.com/philosophy/p...

1 month ago 22 11 5 0
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“Details of the agreement, which was finalized in federal court in Maryland this month, aren’t public…[this] ends litigation between Novartis, one of the world’s largest pharmaceutical companies, & the estate of Lacks, a mother who died of cervical cancer at age 31 & was buried in an unmarked grave”

1 month ago 40 19 0 0

Since yesterday, the Einstein AI cheatbot website underwent some rebranding. The tagline changed from "Einstein does the busywork so you don't have to," to "Einstein is the personal tutor every student deserves." In the FAQ, "How does Einstein do all this?" became "How does Einstein help me learn?"

1 month ago 311 102 20 15
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“Braaains!” Like zombies on the hunt, the Spitzer and #NASAWebb infrared space telescopes went looking for brains in space and captured these uncanny images of nebula PMR 1. A dying star is creating the nebula by expelling its outer layers: https://go.nasa.gov/3MJuY0U

1 month ago 41 11 2 2
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We've posted a new fMRI study of semantic relations (has-part, is-a, made-of, etc.), a key aspect of language. We find that relations are represented in the same brain regions as are other semantic concepts, though voxels tend to be selective for only one relation or another.
doi.org/10.64898/202...

1 month ago 64 26 2 2
PNAS Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...

Bots have made their way to Prolific experiments. Our lab has stopped online testing of adults entirely now for this reason - we want to know if what we study is real. Probably data collected 2-3 years ago are ok, but moving forward we just can't know. www.pnas.org/doi/10.1073/...

2 months ago 170 98 7 11
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Taking the Next Step in Exploring the Literary Digest 1936 Poll While many instructors are aware of the Literary Digest 1936 poll as an example of biased sampling methods, this article details potential further explorations for the Digest’s 1924–1936 quadrennia...

For those of us who teach the Literary Digest 1936 polling fiasco, this pedagogical article is great: www.tandfonline.com/doi/full/10....

2 months ago 4 1 0 0
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📚 Reading Women in Cognitive Science 📚 Occasionally, I make threads on social media about papers and books that I read. It helps me focus and process deeper when I share highlights and thoughts with others. In this blogpost, I compile a…

📚 Reading Women in Cognitive Science 📚

“Recommendations for readings are welcome, especially in the history of cognitive science (prior to 1950s, and the older the better).”

irisvanrooijcogsci.com/2026/02/15/%...

2 months ago 81 30 8 1

I’m an Autistic classically trained chef and I wrote the food aversion acceptance cookbook and guide COLOR TASTE TEXTURE. It’s useful for all ages, no cooking experience required. My goal is to help kids avoid food related trauma and offer a balm of kindness for anyone who couldn’t escape it.

2 months ago 590 300 12 41

Applications for our Space Astronomy Summer Program must be submitted by 11:59 pm EST January 31, 2026, to receive consideration.

2 months ago 15 6 0 0
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Have you ever wanted to study individual differences in attention only to be frustrated by prohibitive low reliability?

If so, what a coincidence!

Let me introduce you to the first study from the newly formed Sheffield PandA lab:

Using RSVPs to measure the speed of attention: rdcu.be/e0t0A

1/

2 months ago 33 12 2 1
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OpenWMData A collection of publicly available working memory datasets

Make it your New Year resolution to add a #workingmemory dataset to OpenWMData so that we can curate our field's precious data, start testing theories and benchmarking models across datasets, conduct secondary analyses and meta-research using the data itself, and help me feel like I'm, like, alive.

3 months ago 28 15 1 0
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Beautiful experimental philosophy paper on what people ordinarily mean when they say that a statement is “true”

Turns out it’s not always about corresponding correctly to the facts. Sometimes it’s more closely related to a moral ideal of “truthfulness”

philarchive.org/archive/ZYGTJN

3 months ago 44 10 3 1

In large lectures, I use our LMS to do graded surveys on questions sprinkled throughout the session. Credit for answering, with opportunities to discuss options in class. Can also collect feedback on various topics. (Can be done with Kahoot, Google forms, or other means.)

3 months ago 2 0 0 0

GOOD NEWS! Researchers have shown Alzheimer’s disease can be REVERSED- not just prevented. Using a potent neuroprotective compound called P7C3-A20, they found RESTORING balance to a central cellular energy molecule (NAD+) not only PREVENTED disease features but REVERSED them, EVEN at late stages.

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