Tootfinder

'History is the study of decisions, not of events' - love this, from Dan Davies 'Unaccountability Machine'. And as an instinctive systems thinker I love even more that he goes on to say 'many decisions are best understood as the outcome of larger systems rather than individual acts of will.'

Holography for bulk-boundary local topological order
Corey Jones, Pieter Naaijkens, David Penneys
https://arxiv.org/abs/2506.19969 https://

Holography for bulk-boundary local topological order
In our previous article [arXiv:2307.12552], we introduced local topological order (LTO) axioms for quantum spin systems which allowed us to define a physical boundary manifested by a net of boundary algebras in one dimension lower. This gives a formal setting for topological holography, where the braided tensor category of DHR bimodules of the physical boundary algebra captures the bulk topological order. In this article, we extend the LTO axioms to quantum spin systems equipped with a topolo…

Looking at #ADSBexchange, the US is moiving a LOT of equipment towards #Ramstein and the ME
Less interesting times, please
#adsb

Jeg har besluttet at jeg vil prŸve at sove her i nat. Desværre er der godt gang i en fest i nabolaget - hvis det bliver ved, må jeg jo gå ind. Men det er nu skŸnt at sove i den friske luft 🤞

Gwen Snyder posted something on Saturday to the effect that “Fascists •need• the appearance of strength, and right now, Trump just looks weak.”
I think it’s easy for us evidence-hungry thinker types to underestimate just how much appearance matters. Massive rallies are not — •must• not be — the endpoint of resistance. However, neither are they purely symbolic. They have a real and concrete effect. They change perceptions, which change human behavior. Yes, they matter. They matter a lot.
/end

Senaste avsnittet av Tyngre Träningssnack
Det senaste kring motstånd mot trötthet inom konditionsidrott | Podcast https://tyngre.se/podcast/tyngre-traningssnack/det-senaste-kring-motstand-mot-trotthet-inom-konditionsidro…

The Condition Number as a Scale-Invariant Proxy for Information Encoding in Neural Units
Oswaldo Ludwig
https://arxiv.org/abs/2506.16289 https://

The Condition Number as a Scale-Invariant Proxy for Information Encoding in Neural Units
This paper explores the relationship between the condition number of a neural network's weight tensor and the extent of information encoded by the associated processing unit, viewed through the lens of information theory. We argue that a high condition number, though not sufficient for effective knowledge encoding, may indicate that the unit has learned to selectively amplify and compress information. We formalize this intuition, particularly for linear units with Gaussian inputs, linking the c…

Leaky Thoughts: Large Reasoning Models Are Not Private Thinkers
Tommaso Green, Martin Gubri, Haritz Puerto, Sangdoo Yun, Seong Joon Oh
https://arxiv.org/abs/2506.15674

Leaky Thoughts: Large Reasoning Models Are Not Private Thinkers
We study privacy leakage in the reasoning traces of large reasoning models used as personal agents. Unlike final outputs, reasoning traces are often assumed to be internal and safe. We challenge this assumption by showing that reasoning traces frequently contain sensitive user data, which can be extracted via prompt injections or accidentally leak into outputs. Through probing and agentic evaluations, we demonstrate that test-time compute approaches, particularly increased reasoning steps, ampl…

The large $N$ factorization does not hold for arbitrary multi-trace observables in random tensors
Razvan Gurau, Felix Joos, Benjamin Sudakov
https://arxiv.org/abs/2506.15362

The large $N$ factorization does not hold for arbitrary multi-trace observables in random tensors
We consider real tensors of order $D$, that is $D$-dimensional arrays of real numbers $T_{a^1a^2 \dots a^D}$, where each index $a^c$ can take $N$ values. The tensor entries $T_{a^1a^2 \dots a^D}$ have no symmetry properties under permutations of the indices. The invariant polynomials built out of the tensor entries are called trace invariants. We prove that for a Gaussian random tensor with $D\ge 3$ indices (that is such that the entries $T_{a^1a^2 \dots a^D}$ are independent identically dist…