Tootfinder

🇺🇦 #NowPlaying on KEXP's #WoPop
Semblanzas del Río Guapi:
🎵 Va a Comenza'
#SemblanzasdelRíoGuapi
https://discospacifico.bandcamp.com/track/va-a-comenza-semblanzas-del-r-o-guapi
https://open.spotify.com/track/3XVR0J9jpeRLpNoa1RivRS

Tying up loose ends on the STM32MP2 PCIe board.
It's fully routed and I'm trying to fine tune the layer 3 power (and some ground) plane to provide good return current paths for the FPGA transceivers.
Left to right the pairs are two refclks (one from an LVDS oscillator and one from the SoC), SFP RX, and PCIe RX.
The actually-fast signals (PCIe and SFP) are fully ground referenced their entire length and have return path vias between L2 and L3 when they jump up to L1…

People are asking how a "Russian wish-list" could have been communicated as a US government proposal - and I think I've got a simple explanation that could get me a no-prize envelope.

Oracle Oracle #ia

Oracle, symbole du dégonflement de la bulle de l’IA
La valeur de l’entreprise de Larry Ellison s’était envolée après l’annonce de grands investissements dans des data centers. Trois mois plus tard, la baisse est rude : − 50 %, à cause de doutes sérieux sur la concrétisation des promesses. Une désillusion qui commence à se propager à tout le secteur.

❄️ It’s freezing cold outside here in Germany, and this is an interesting explainer of why that is: a warming event in the polar region is leading to an early collapse of the polar vortex, so Europe and North America are flooded with cold air, while the North Pole is unusually warm. #weather #climate

Stratospheric Warming Watch: Polar Vortex Collapse has begun, with cold air and snowfall impacts expected
A Stratospheric Warming is now collapsing the Polar Vortex, with polar air and snow forecast across the United States, Canada and Europe in December

spam of the day
> Hi there, I am [generic chinese name], a senior full-stack developer with 7 years of experience. I’m looking to partner with someone in the US who can handle the client-facing communication side of projects, while I focus on the technical work and delivery.
> The idea is simple:
> You handle communication − I build the solution − We share the profit.
I should have setup per-contact email long ago, so I know how I got on the spam list of John …

Convergence Guarantees for Federated SARSA with Local Training and Heterogeneous Agents
Paul Mangold, Elo\"ise Berthier, Eric Moulines
https://arxiv.org/abs/2512.17688 https://arxiv.org/pdf/2512.17688 https://arxiv.org/html/2512.17688
arXiv:2512.17688v1 Announce Type: new
Abstract: We present a novel theoretical analysis of Federated SARSA (FedSARSA) with linear function approximation and local training. We establish convergence guarantees for FedSARSA in the presence of heterogeneity, both in local transitions and rewards, providing the first sample and communication complexity bounds in this setting. At the core of our analysis is a new, exact multi-step error expansion for single-agent SARSA, which is of independent interest. Our analysis precisely quantifies the impact of heterogeneity, demonstrating the convergence of FedSARSA with multiple local updates. Crucially, we show that FedSARSA achieves linear speed-up with respect to the number of agents, up to higher-order terms due to Markovian sampling. Numerical experiments support our theoretical findings.
toXiv_bot_toot

Cable company Altice changes its name to Optimum Communications and will change its NYSE ticker symbol to OPTU on November 19 (Alex Weprin/The Hollywood Reporter)
https://www.hollywoodreporter.com/business/business-news/altic…

Altice Changes Corporate Name to Optimum Communications
The cable company (which was once called Cablevision) will begin trading under the ticket OPTU later this month.

Error chaining in JavaScript: cleaner debugging with Error.cause
Error handling in JavaScript has always felt a bit chaotic. Throwing errors is easy, but tracing them back to the root cause? Not so much. That’s where the cause property comes in.
🧑‍💻 https://all…

Error chaining in JavaScript: cleaner debugging with Error.cause - Matt Smith
Use JavaScript's 'cause' property to chain errors, preserve context, and simplify debugging. Cleaner stack traces, better test assertions.