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David Pfau

@davidpfau.com

So far I have not found the science, but the numbers keep on circling me. Views my own, unfortunately.

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Latest posts by David Pfau @davidpfau.com

Maybe somewhere.

03.03.2026 04:15 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

There's some kind of lesson there.

03.03.2026 04:13 πŸ‘ 8 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I miss when ideas mattered in machine learning.

03.03.2026 04:09 πŸ‘ 50 πŸ” 2 πŸ’¬ 4 πŸ“Œ 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/...

12.02.2026 07:38 πŸ‘ 1078 πŸ” 442 πŸ’¬ 21 πŸ“Œ 49

How does Esoteric Claude feel about this?

09.02.2026 17:24 πŸ‘ 4 πŸ” 0 πŸ’¬ 1 πŸ“Œ 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."

30.01.2026 22:02 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 1
Alexander Abian - Wikipedia

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

30.01.2026 22:02 πŸ‘ 1 πŸ” 0 πŸ’¬ 2 πŸ“Œ 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.

20.01.2026 17:11 πŸ‘ 11 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

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

10.01.2026 15:19 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

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

09.01.2026 14:05 πŸ‘ 3 πŸ” 0 πŸ’¬ 2 πŸ“Œ 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.

08.01.2026 19:22 πŸ‘ 2 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0

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

08.01.2026 19:20 πŸ‘ 3 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

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

07.01.2026 14:47 πŸ‘ 8 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

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

03.01.2026 19:43 πŸ‘ 8 πŸ” 0 πŸ’¬ 1 πŸ“Œ 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.

22.12.2025 14:13 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

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.

22.12.2025 14:13 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 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.

22.12.2025 14:12 πŸ‘ 4 πŸ” 0 πŸ’¬ 1 πŸ“Œ 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. StΓΆrmer 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...

22.12.2025 14:12 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 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*.

22.12.2025 14:12 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 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...

22.12.2025 14:11 πŸ‘ 4 πŸ” 0 πŸ’¬ 1 πŸ“Œ 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

22.12.2025 14:11 πŸ‘ 34 πŸ” 4 πŸ’¬ 2 πŸ“Œ 0

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

09.12.2025 19:34 πŸ‘ 11 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I am not at NeurIPS.

04.12.2025 23:45 πŸ‘ 12 πŸ” 0 πŸ’¬ 2 πŸ“Œ 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?

01.12.2025 23:23 πŸ‘ 15 πŸ” 1 πŸ’¬ 0 πŸ“Œ 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...

20.11.2025 14:13 πŸ‘ 12 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Doesn't matter, information geometry is eternal.

14.11.2025 00:19 πŸ‘ 3 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

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

13.11.2025 23:55 πŸ‘ 3 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

I was really sure that this was not a novel result when I wrote it.

13.11.2025 23:53 πŸ‘ 3 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

People keep coming out of the woodwork (no pun intended) to tell me that this three-page note is behind the best work of their careers and I am blown away.

13.11.2025 23:52 πŸ‘ 3 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

I will say, it is a very odd feeling to finally tick something off your to-do list after 12 years...satisfying, but odd.

13.11.2025 20:46 πŸ‘ 5 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0