dmm: (Default)
"The First Room-Temperature Ambient-Pressure Superconductor" arxiv.org/abs/2307.12008

discussion makes one to be cautiously hopeful: news.ycombinator.com/item?id=36864624

Meanwhile, JuliaCon has started at MIT.

dmm: (Default)
Комнатная температура, давление 10000 атмосфер (много, но заметно меньше, чем раньше). Напечатали в Nature.

Но народ, мягко говоря, не единодушен в том, верить этому делу или нет.
dmm: (Default)
Нашёл очень прилично выглядящую теорию, объясняющую "космологическую константу" ("темную энергию", наблюдаемое ускорение разбегания галактик).

Ещё нашёл статью, где, в частности, говорится

"A crucial lesson learned from the first [...] of LHC data is that hadron colliders are not only discovery machines but also excellent precision machines. This result could not have been anticipated at the time the LHC started and was possible only because of the successful interplay between different elements: unprecedented technological advancements, exceptional accelerator performances, excellent detector resolutions, high-performance computing and data handling, higher-order theoretical calculations of background processes with accuracies unthinkable only a few years ago. The confluence of different expertise from different scientific communities was the secret behind the success of the LHC precision programme, which brought new knowledge and opened new prospects in research beyond traditional frontiers. Precision has become key for present and future exploration in high-energy physics."

И, помимо этого замечательного прогресса в точности экспериментов, в той же статье:

"There are also theoretical indications for questioning the concept of symmetry. ... Gauge symmetries may not be as fundamental as we thought, but only an emergent phenomenon. They could be a mirage of a different reality that takes place at a more fundamental level. Maybe the LHC is telling us that it is not just a matter of adapting our models or adjusting some parameters, but it is really time to look for radically different paradigms."

Детали и ссылки, как обычно, в комментариях.
dmm: (Default)
This week, Nov 17-18, Thu-Fri, 8am-11:45am Boston time, "Quantum physics and the first-person perspective": www.essentiafoundation.org/quantum-physics-and-the-first-person-perspective/seeing/

JuliaCon 2023, juliacon.org/2023/ the call for proposals is posted, deadline Dec 18: pretalx.com/juliacon2023/cfp


I've spent more quality time focusing of two breakthroughs in understanding the nature and the behavior of machine learning models which came from the "penumbra" of "prosaic alignment" start-ups and which I wrote about in my previous two posts.

"Grokking is (more or less) solved." I took brief notes between Oct 21 and Oct 23: github.com/anhinga/2022-notes/tree/main/Grokking-is-solved

"Generative autoregressive models are similators." I took extensive notes between Oct 5 and Oct 23: github.com/anhinga/2022-notes/tree/main/Generative-autoregressive-models-are-similators

I am continuing to develop thoughts related to these topics, I am going to gradually write more about those topics in the comments.

dmm: (Default)
Вот, наконец, кажется возник правильный подход к пониманию природы моделей вроде GPT-3 и разнообразного волшебства, с этим связанного:

www.lesswrong.com/posts/vJFdjigzmcXMhNTsx/simulators

Он говорит, что надо перестать думать про эти модели в терминах более старых AI-систем.

dmm: (Default)
arxiv.org/abs/2208.09964

What he is saying about Feynman's exploration of negative probabilities in the first two pages seems to be particularly interesting (and still quite inconclusive).

The good comment on the current state of quantum computing is in scottaaronson.blog/?p=6670:

"the only fully convincing and clear demonstration that something is possible is to do it, as with the Wright brothers or the Trinity nuclear test. In other sense, though, we’ve known the “strategy” since the 1990s. It’s just that the fault-tolerance theorem called for gate fidelities 5-6 orders of magnitude better than anything achievable at the time. In the 25 years since, about 3 of those orders of magnitude have been achieved, so it doesn’t take any great imagination to foresee that the remainder could be as well."
dmm: (Default)
https://phys.org/news/2022-04-steampunk-quantum-physics.amp

"Using steampunk to explain quantum physics"

Нахально утверждают, что умеют красиво и понятно объяснять квантовую термодинамику.

Хочется разобраться...

Ah hour-long video by the author: www.youtube.com/watch?v=tMaQwZ_LRbI
dmm: (Default)
Why Quantum Mechanics? (Jan 25, 2022)

И, среди прочего, оттуда я узнал, что есть такая любопытная штука, как en.wikipedia.org/wiki/Tsirelson%27s_bound (и имя это для меня новое: Борис Семёнович Цирельсон)

Китайский Новый год наступает в этот раз 1-го февраля: en.wikipedia.org/wiki/Chinese_New_Year
dmm: (Default)
Rovelli and Vidotto seem to be saying that it might be that dark matter is simply "Plank sized while holes". I wonder if this would also provide a good enough explanation of dark energy (white holes if they exist would be wonderful sources of all kinds of things, and Plank-sized ones would create this feel that those things "just appear from nowhere", which seems like a nice setup for dark energy).

"Hard problem of qualia". The qualia-related part of the "hard problem of consciousness" is certainly hard. If one can factor out the "qualia problem", I am no so sure that the remaining part of the problem of consciousness is "hard" in the Chalmers-introduced sense of "hard".

So far, almost all provisional "theories of consciousness" just ignore the "hard problem of qualia" (which is why I quite skeptical of them).

The only approaches which seem to make sense are of "provisional dualism" (one provisionally introduces qualia as additional primitives
and build one's theories on top of that; if one admits qualia as primitives, the remaining part might be tractable). I just learned a couple of days ago that Johannes Kleiner made some rather nice progress in that direction in 2019.

Profile

dmm: (Default)
Dataflow matrix machines (by Anhinga anhinga)

May 2025

S M T W T F S
    123
456 78910
11 121314151617
18192021222324
25262728293031

Syndicate

RSS Atom

Most Popular Tags

Style Credit

Expand Cut Tags

No cut tags
Page generated Jul. 1st, 2025 06:54 am
Powered by Dreamwidth Studios