Tootfinder

(Bicycle) Speed and safety
For years I've heard people talking about how motor-assisted bicycles "are safer" because they can "match traffic speed", but I think this is mistaken.  Here's three reasons why. For me the most compelling reason comes from a 2007 paper by Laurie F. Beck, Ann M. Dellinger, and Mary E. O’Neil in the American Journal of Epidemiology, "Motor Vehicle Crash Injury Rates by Mode of Travel, United States: Using Exposure-Based Methods…

(Bicycle) Speed and safety
For years I’ve heard people talking about how motor-assisted bicycles “are safer” because they can “match traffic speed”, but I think this is mistaken.  Here’s t…

Sorry if I fucked up your day too, but I fucking love you all! After looking at this GIF, I’m over it!
Autism is real as hell, and autism is fucking awesome. Fuck the haters, fuck anyone who’s “anti-autism,” and fuck domestic violence against autistic people.
I exist, I’m proud, and I’m not going anywhere. Autism power, always fucking rad!
Mistakes happen, and I gotta work on myself, lmao! You do you, and I’ll do me. Cool? Cool.

A4: Microarchitecture-Aware LLC Management for Datacenter Servers with Emerging I/O Devices
Haneul Park, Jiaqi Lou, Sangjin Lee, Yifan Yuan, Kyoung Soo Park, Yongseok Son, Ipoom Jeong, Nam Sung Kim
https://arxiv.org/abs/2506.11329

A4: Microarchitecture-Aware LLC Management for Datacenter Servers with Emerging I/O Devices
In modern server CPUs, the Last-Level Cache (LLC) serves not only as a victim cache for higher-level private caches but also as a buffer for low-latency DMA transfers between CPU cores and I/O devices through Direct Cache Access (DCA). However, prior work has shown that high-bandwidth network-I/O devices can rapidly flood the LLC with packets, often causing significant contention with co-running workloads. One step further, this work explores hidden microarchitectural properties of the Intel Xe…

Rank metric isometries and determinant-preserving mappings on II$_1$-factors
Jinghao Huang, Karimbergen Kudaybergenov, Fedor Sukochev
https://arxiv.org/abs/2506.11428

Rank metric isometries and determinant-preserving mappings on II$_1$-factors
We fully describe the general form of a linear (or conjugate-linear) rank metric isometry on the Murray--von Neumann algebra associated with a II$_1$-factor. As an application, we establish Frobenius' theorem in the setting of II$_1$-factors, by showing that every determinant-preserving linear bijection between two II$_1$-factors is necessarily an isomorphism or an anti-isomorphism. This confirms the Harris--Kadison conjecture (1996).

This https://arxiv.org/abs/2502.04097 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_qfi…

Impermanent loss and Loss-vs-Rebalancing II
This paper examines the relationship between impermanent loss (IL) and loss-versus-rebalancing (LVR) in automated market makers (AMMs). Our main focus is on statistical properties, the impact of fees, the role of block times, and, related to the latter, the continuous time limit. We find there are three relevant regimes: (i) very short times where LVR and IL are identical; (ii) intermediate time where LVR and IL show distinct distribution functions but are connected via the central limit theore…

Complications from surgery landed my dad back in the hospital late Wednesday. Successful exploratory surgery found and hopefully stopped the internal bleeding.
If a few key numbers remain stabile, he might get released today. But in the interim, it’ll have to be a Father’s Day video call to his hospital room.
There are myriad ways in which to view this, but I’m choosing gratefulness. #HappyFathersDay

RIP Joe Don Baker. Probably best known for Walking Tall, but I'll always know him for Mitchell and Final Justice because of MST3K.

\'Etale algebras and the Kummer theory of finite Galois modules
Evan M. O'Dorney
https://arxiv.org/abs/2506.11310 https://arx…

Étale algebras and the Kummer theory of finite Galois modules
Galois cohomology groups $H^i(K,M)$ are widely used in algebraic number theory, in such contexts as Selmer groups of elliptic curves, Brauer groups of fields, class field theory, and Iwasawa theory. The standard construction of these groups involves maps out of the absolute Galois group $G_K$, which in many cases of interest (e.g. $K = \mathbb{Q}$) is too large for computation or even for gaining an intuitive grasp. However, for finite $M$, an element of $H^i(K,M)$ can be described by a finite …

This https://arxiv.org/abs/2503.10984 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_sta…

The Problem of the Priors, or Posteriors?
The problem of the priors is well known: it concerns the challenge of identifying norms that govern one's prior credences. I argue that a key to addressing this problem lies in considering what I call the problem of the posteriors -- the challenge of identifying norms that directly govern one's posterior credences, which backward induce some norms on the priors via the diachronic requirement of conditionalization. This forward-looking approach can be summarized as: Think ahead, work backward. A…

I had a bad day and made a mistake, but I chose to do the right thing and move forward.
Proud bisexual, gender-fluid, autistic anarchist committed to building a world based on mutual aid, solidarity, and freedom for all.
If you believe in challenging power and creating change from the ground up, let’s connect and let’s grow this movement together.
Now, here I am, feeling stronger and ready for better days ahead.