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Posts by David Pfau

Ah, you haven't heard the news. Ask Sean.

2 days ago 0 0 0 0

Using AI to cure cancer or fight climate change makes as much sense as using neuroscience to figure out AI. It's all yak shaving. If your goal is to "solve X" just go solve X, don't try to solve Y then use Y to solve X.

2 days ago 22 2 5 0
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Single-celled organism with no brain is capable of Pavlovian learning A trumpet-shaped, single-celled organism seems able to predict one thing will follow another, hinting that such associative learning emerged long before multicellular nervous systems

This is an awesome discovery:
A single-celled organism with no brain called Stentor seems capable of Pavlovian learning. Yes, it can actually learn to associate two things despite having no neurons.

My latest for @newscientist.com. 🧪 #science #memory #learning
www.newscientist.com/article/2519...

3 weeks ago 260 85 9 21

Maybe somewhere.

1 month ago 1 0 1 0

There's some kind of lesson there.

1 month ago 8 0 0 0

I miss when ideas mattered in machine learning.

1 month ago 52 2 4 0
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NEW ANALYSIS: China's CO2 has now been 'flat or falling' for 21 months

* Down in 2025
* Still below Mar 2024
* Clean energy wave a key factor

If this is China's peak (TBC) it's the climate story of the century so far…

www.carbonbrief.org/...

1 month ago 1077 439 21 49

How does Esoteric Claude feel about this?

1 month ago 4 0 1 0

"Alexander (Smbat) Abian (January 1, 1923 – July 24, 1999)[1] was an Iranian-born Armenian-American mathematician who taught for over 25 years at Iowa State University and became notable for his frequent posts to various Usenet newsgroups, and his advocacy for the destruction of the Moon."

2 months ago 2 0 0 0
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Alexander Abian - Wikipedia

This you, @truebe.horse ? en.wikipedia.org/wiki/Alexand...

2 months ago 1 0 1 0

One year, and we're on the brink of war with the rest of NATO. God help us after three more years of this.

2 months ago 11 0 0 0

Wasn't Eric Adams the one who brought trash bins to NYC?

2 months ago 0 0 1 0

I'm not really sure how to square this with the US spending 1% of GDP on datacenter construction.

2 months ago 3 0 2 0

If anyone DMed me recently - to use DMs for this app in the UK, I have to go through age verification, which I have not done yet on principle. If you are trying to reach me privately, email or Twitter DM works.

3 months ago 2 0 2 0

Ok apparently some people thought I was talking about a movie. I meant the US foreign policy establishment in DC.

3 months ago 3 0 1 0

I'm starting to think The Blob might not have been such a bad thing after all.

3 months ago 8 0 1 0

A friend who lives in Denver says that at least sorta soft vaccine skepticism is sadly popular there.

3 months ago 8 0 1 0

All-around fantastic work from Andres Perez Fadon and collaborators, and this shows how these calculations could be done for systems where we still don't know how to write down even qualitatively correct solutions.

3 months ago 2 0 1 0
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This requires the calculation of multiple degenerate ground states. People have used neural networks to calculate *a* ground state for the FQHE, and have calculated fractional spin statistics in lattice models, but no one has done these calculations in the continuum before.

3 months ago 1 0 1 0
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Rather than write down a solution through a stroke of genius, we trained a Transformer-like neural network to calculate these fractional spin statistics using "entanglement interferometry", and got answers more accurate than the Laughlin wavefunction.

3 months ago 4 0 1 0
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Nobel Prize in Physics 1998 The Nobel Prize in Physics 1998 was awarded jointly to Robert B. Laughlin, Horst L. Störmer and Daniel C. Tsui "for their discovery of a new form of quantum fluid with fractionally charged excitations...

This behavior was so weird and unexpected that it ended up being the subject of the 1998 Nobel Prize in physics. No one even knew how to write down a wavefunction that explained this phenomenon until Bob Laughlin just dreamed one up one day. www.nobelprize.org/prizes/physi...

3 months ago 1 0 1 0
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The collective excitations of many electrons behave a lot like particles...but instead of particles with integer spin (bosons) or half-integer spins (fermions) they behave like they have weird fractional spins like 1/3, 1/5, etc. This is the *fractional quantum hall effect*.

3 months ago 2 0 1 0
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Fundamental particles are either fermions or bosons. Fermions, like electrons, make up matter, while bosons, like photons, are force carriers. But in two dimensional materials in a magnetic field, things can start to get weird...

3 months ago 4 0 1 0
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Extracting Anyon Statistics from Neural Network Fractional Quantum Hall States Fractional quantum Hall states host emergent anyons with exotic exchange statistics, but obtaining direct access to their topological properties in real systems remains a challenge. Neural-network wav...

Excited to share our latest preprint, on using deep learning to extract the weird fractional quantum statistics of 2D topological materials: arxiv.org/abs/2512.15872

3 months ago 34 4 2 0

Not sure why they bother asking for my age on this app, everyone knows everyone on Bluesky is exactly 39.

3 months ago 10 0 0 0
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I am not at NeurIPS.

4 months ago 12 0 2 0

The first recorded case of COVID-19 was on November 30, 2019.

ChatGPT launched to the public on November 30, 2022.

What new horror was unleashed on the world yesterday?

4 months ago 15 1 0 1
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Utterance Is Place Enough | Frances Richard Mapping conversation

I'm a bit surprised that in the era of conversational LLMs, there hasn't been a revival of interest in the art world in Cohen, Frank and Ippolito's "Argument Drawings" www.cabinetmagazine.org/issues/2/ric...

4 months ago 12 0 0 0

Doesn't matter, information geometry is eternal.

4 months ago 2 0 1 0

Ahhhhh you worked with Gavin Brown, he chimed in on the other site.

4 months ago 2 0 1 0