Tootfinder

Breaking Symmetries with Involutions
Michael Codish, Mikol\'a\v{s} Janota
https://arxiv.org/abs/2506.02903 https://arxiv.org/pdf/…

Breaking Symmetries with Involutions
Symmetry breaking for graphs and other combinatorial objects is notoriously hard. On the one hand, complete symmetry breaks are exponential in size. On the other hand, current, state-of-the-art, partial symmetry breaks are often considered too weak to be of practical use. Recently, the concept of graph patterns has been introduced and provides a concise representation for (large) sets of non-canonical graphs, i.e.\ graphs that are not lex-leaders and can be excluded from search. In particular…

The neurological basis for non-visual illustration https://intellectdiscover.com/content/journals/10.1386/jill_00117_7 "this article poses the question of whether there is a theoretical precedent for creating visual imagery in the minds of blind peopl…

I am once again asking GHC devs to make it possible for tooling such as HLint and the Haskell Language Server to compile against multiple versions of GHC.
I realise that this is a gigantic undertaking, but if you're wondering why people don't stick with Haskell, it might be because every compiler version upgrade breaks *everything*.

@… You have to be careful to tail your logs, not cat them.
Otherwise all hell breaks loose.

🏊‍♂️ Still no pool. Still chasing contractors.
One no-show after another, with zero communication. I get delays. What I don't get is being ghosted.
Third contractor showed promise. Local, knowledgeable, communicative. Now it’s a rain game.
Also: my desktop crashed mid-post. Overheating CPU drama. 3 years of weekly blog posts. Consecutive. No breaks.
Full update here −

Tooting My Own Horn: Three Years And Counting – Bob Mueller
I extended my weekly posting streak to three years this week. Still don't have the pool up. And I wonder about conspiracy theories.

A centralized intelligence database on all Americans is not inherently legal.
It likely breaks the Privacy Act of 1974, the Foreign Intelligence Surveillance Act (FISA), the 1st, 4th and 5th Amendments.
This must be stopped. Contact your Senators and Representative and ask them to stop it. I use @… to call mine.

Trump Taps Palantir to Create Master Database on Every American
Trump’s dystopian plan is already underway.

This isn't about balancing security vs. usability. This is both poor security and poor usability. https://scalewithlee.substack.com/p/when-etchsts-breaks-your-substack

When /etc/h*sts Breaks Your Substack Editor: An Adventure in Web Content Filtering
An exploration of web security mechanisms and their unexpected consequences

Time inversion symmetry in the Dirac and Schr\"odinger-Pauli theories
R. Winkler, U. Z\"ulicke
https://arxiv.org/abs/2506.01292 https://

Time inversion symmetry in the Dirac and Schrödinger-Pauli theories
The Schrödinger-Pauli theory is generally believed to give a faithful representation of the nonrelativistic and weakly relativistic limit of the Dirac theory. However, the Schrödinger-Pauli theory is fundamentally incomplete in its account of broken time inversion symmetry, e.g., in magnetically ordered systems. In the Dirac theory of the electron, magnetic order breaks time inversion symmetry even in the nonrelativistic limit, whereas time inversion symmetry is effectively preserved in the S…

Having fun exploring Atomfall - not really following main quest at all yet - but it's hilarious to me that this game was day one on Game Pass yet totally breaks under Quick Resume... I can't imagine how that snuck past Xbox testing.

This https://arxiv.org/abs/2408.03984 has been replaced.
initial toot: https://mastoxiv.page/@arX…

Fractionalization as an alternate to charge ordering in electronic insulators
Incompressible insulating phases of electronic systems at partial filling of a lattice are often associated with charge ordering that breaks lattice symmetry. The resulting phases have an enlarged unit cell with an effective integer filling. Here we explore the possibility of insulating states - which we dub "Quantum Charge Liquids" (QCL) - at partial lattice filling that preserve lattice translation symmetry. Such QCL phases must necessarily either have gapped fractionally charged excitations …

Phase estimation in lossy optical interferometry without a reference beam
Jun Tang, Dong-Qing Wang, Wei Zhong, Lan Zhou, Yu-Bo Sheng
https://arxiv.org/abs/2505.24770

Phase estimation in lossy optical interferometry without a reference beam
We investigate phase estimation in a lossy interferometer using entangled coherent states, with particular focus on a scenario where no reference beam is employed. By calculating the quantum Fisher information, we reveal two key results: (1) the metrological equivalence between scenarios with and without a reference beam, established under ideal lossless conditions for the two-phase-shifting configuration,breaks down in the presence of photon loss, and (2) the pronounced inferior performance of…

This was a disappointment, but I got out and did it, just a few breaks here and there. I was hoping to get more energy after this, but returned to the office and had to push myself heavy to finish the workday. Very fatigued and in a lot of pain, definitely turned out to be a #longcovid crash. Thankfully, I do not feel much pain while

uspolitics, trump
I keep seeing smart people writing stuff like
> [the US] kept peace through strength balanced with restraint, and wielded influence through culture, values, and diplomacy
I understand that #Trump is terrible and some people feel tempted to idealize what they had before him, but we should be more discerning, or otherwise it becomes impossible to understand how this happened in the first place.
Let's start with some questions:
- peace where? and for who? was it true peace, or "Pax Romana"?
- are we going to take seriously that statement on "restraint"? after all the lies, internal witch hunting, sanctions, coups, wars, invasions, genocides, and last but not least, 2 unnecessary nuclear strikes on Japan?
Now, on "culture, values, and diplomacy". Sure. Why not. Not everything was going to be bad, right?
But the thing is, abusive husbands aren't bad all the time either. From time to time they know how to be sweet and seem to care: one present here, flowers the next day, a little bit of gaslighting, and fake apologies after that "accidental" slap.
Given enough time (if the wife is still alive), at some point the victim decides to leave, and then all hell breaks loose. Trump is the manifestation of that moment. He does not represent a change in #USA's nature, but a hidden side that was "always" there, just waiting to play its role.
Others believe this is because #US citizens have been intentionally dumbed down by a combination of propaganda and a disfunctional education system, and I'm sure it's partly true... But let's see what many of their most brilliant and educated citizens are choosing to do with their lives today: https://sfstandard.com/2025/03/12/stanford-students-want-in-on-the-military-tech-gold-rush/
So, all I'm asking is: please drop the act. It was always a clusterfuck.

Ok nerds... here's a great site that breaks down the circuits in pedals, the example here being the MXR Phase 90
#GearSquad #guitar #GuitarEffects

“What we ultimately want, and what we believe we need, is a commons that is strong, resilient, growing, useful (to machines and to humans)—all the good things, frankly. But as our open infrastructures mature they become increasingly taken for granted, and the feeling that “this is for all of us” is replaced with “everyone is entitled to this”. While this sounds the same, it really isn’t. Because with entitlement comes misuse, the social contract breaks, reciprocation evaporates, and ultimately the magic weakens.”
Very glad to see that @… is working to address the deep challenges that have arisen at the intersection of the open movement and corporate AI.
https://creativecommons.org/2025/04/02/reciprocity-in-the-age-of-ai/
h/t @…

Echt, het is zó tijd om de guillotine uit het vet te halen
https://www.commondreams.org/news/did-republicans-vote-to-cut-medicaid

To all my fellow Arch users, I was once again reminded that putting anything in `/etc/environment` is a bad idea. Don't do it.
I put `GTK_USE_PORTAL=1` in there, because I always want native file dialogs, right? Well, turns out this breaks secret service integration (KDE Wallet/GNOME Keyring) in Fractal. So, back to setting it on a per-app basis.
#Linux

This is a sad evening. By the time this posts, my WoW sub will have expired. I will not be renewing it.
I have played WoW since 2006. I have played it almost as long as all my relationships combined. (There's been a couple sizable gaps between 'ships, yo.) I have dozens of alts. 2 years played time (yeah, not THAT much considering, but I also play other games and have taken a couple year long breaks.)
WoW had always been there as an excellent escape from reality when I …

Got the wheel replaced in my Elna finally. Its WAY smoother but ticks like a clock now. Normal? Going to check it again shortly (just lubricated it) and try again with new thread. I love old cotton wood spool thread but it always breaks so easy. #sewing #sewingmachines

#Driverless #MaseratiMC20 breaks #speed #record, reaches *318.17 km/h* on NASA runway

Good morning from Harlem
#Photography #GoodMorning #Sunrise #NYC

Does anyone have opinions on Rancher Desktop? Seems to be good so far, Docker Desktop repeatedly breaks itself on my Windows machines and I'm looking for an alternative...

Rough Bergomi turns grey
Antoine Jacquier, Adriano Oliveri Orioles, Zan Zuric
https://arxiv.org/abs/2505.08623 https://arxiv.org/pdf/…

Rough Bergomi turns grey
We propose a tractable extension of the rough Bergomi model, replacing the fractional Brownian motion with a generalised grey Brownian motion, which we show to be reminiscent of models with stochastic volatility of volatility. This extension breaks away from the log-Normal assumption of rough Bergomi, thereby making it a viable suggestion for the Equity Holy Grail -- the joint SPX/VIX options calibration. For this new (class of) model(s), we provide semi-closed and asymptotic formulae for SPX a…

I read "Then I Am Myself the World: What Consciousness Is and How to Expand It" by Christof Koch.
Interesting book which spends like 8 or 9 chapters detailing all the experiments which prove beyond much doubt that consciousness, and self awareness, is a thing done by a brain.
It describes how perception is a construction of a description, has a chapter called "computational mind"
And then spends the last two chapters describing why he thinks the mind can't be computed, because drugs have made him think experience is some kind of magic associated with highly interconnected causal structures.
Apparently, he thinks, once things become interconnected enough they become able to cause things independently of the physics running those connections.
Which is crazy, obviously. There's nothing causal in direct connections between neurons that isn't equally causal in modeled connections between virtual neurons.
All his evidence in the book from neural MRI scans to the effects of psychedelic drugs and symptoms of strokes and disease point to the brain simulating a virtual reality which is the basis of perception.
That simulated world in which we live is full of colour and shape and sounds and emotions and millions of mental constructs that are built to be correlated by the senses with the outside world, but are not equal to the world itself. We live in a dream constructed to correlate with reality.
But then instead of taking the next step: That consciousness itself is a property of a simulated being inside that mental model of the universe, a property which the brain simulates and applies to the virtual self that's doing the experiencing inside that model, he jumps towards some magic implying pan-psychism or that sufficiently interconnected networks become causally self-complete for some reason nobody can fathom.
Sure, colour and shape and emotions are all made up by the brain but experience can't be! For some reason.
You see in truth dualism is false, in that there is no spirit realm in which ghosts animate the matter of the body somehow.
Yet also, dualism is true, in that there is a simulated mental reality which we live in, computed by the brain in which all perception and experience are created, which is related-to but separate-from the unfolding complicated dance of energy that is the universe our bodies interact with.
People take some DMT trip, and the model of the universe emulated by their brain collapses and breaks. Their virtual simulated self inside their mind has these experiences of being one with the universe or the experience of feeling dead yet conscious or whatever, and these hippies think that the broken down simulated experience is real and reflects how consciousness is more fundamental than the atoms that make up the neurons in their brain.
Instead of realizing it shows them that their experienced universe is a simulacrum, they think they get a more direct experience of reality somehow. A consciousness more pure than any mere base atom.
"Then I am myself the world" is a great title. Everything you ever experience is created and simulated in your brain like a dream, the whole universe is inside your head. Even the fact of experience itself.
But that isn't the conclusion Koch reaches somehow, he just jumps from describing the evidence that this is so straight into ascribing super-causal magic consciousness to particular arrangements of atoms that integrated information theory suggest have high correlation, and thinks therefore conciousness is itself the entire universe.
Ah well, fun book. I like arguing in my head with authors that are wrong.
#reading #books #consciousness #thenIAmMyselfTheWorld