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The Oda Who Lost, and Lost, and Lost…and Won?

2025-04-17
The Oda Who Lost, and Lost, and Lost…and Won?

While Oda Nobunaga struck fear into the hearts of feudal lords during Japan's Sengoku period, another Oda, Ujiharu, became infamous as the weakest daimyo. Ruling strategically important Oda Castle, he lost and regained it nine times. Despite consistently poor military decisions—often ignoring sound advice—his unwavering refusal to accept defeat earned him the moniker “The Phoenix.” His seemingly reckless charges might have been an attempt to prevent sieges and protect his people. Exceptional diplomatic skills and deep loyalty from his retainers and farmers also marked his reign. Ultimately, his refusal to swear allegiance to Toyotomi Hideyoshi cost him his lands, but he survived—a fate arguably better than that of his more famous namesake, Oda Nobunaga.

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(www.tokyoweekender.com)
Misc Sengoku period Oda Ujiharu

Arizona County Delays $500K AI Crime-Fighting Software Purchase Amidst Concerns

2025-04-17
Arizona County Delays $500K AI Crime-Fighting Software Purchase Amidst Concerns

Pinal County, Arizona, considered a $500,000 contract for Overwatch, an AI-powered crime-fighting software from Massive Blue. The software, using 50 AI bots, aims to combat human trafficking, drug trafficking, and gun trafficking. However, concerns arose regarding its unproven effectiveness; despite claims of assisting in an arson investigation, no arrests have been made. After questioning from supervisors about the lack of demonstrable results, the county board delayed the vote, requesting further evaluation before committing taxpayer funds.

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(www.wired.com)
Tech Law Enforcement

The H-1B Lottery Reform: A Wage Level Mirage

2025-09-25
The H-1B Lottery Reform: A Wage Level Mirage

The Department of Homeland Security proposed replacing the H-1B lottery with a weighted system based on Department of Labor (DOL) Wage Levels. However, research reveals this system doesn't prioritize high-skill or high-pay workers. Instead, it favors large outsourcing firms, reduces visas for US-educated graduates, and only marginally increases H-1B holder salaries. Analysis of FOIA data shows a compensation-based system would be far more effective at attracting high-skilled talent and significantly raising average H-1B salaries.

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(ifp.org)
Tech

ZLinq: A Radical Optimization and Extension of LINQ

2025-05-20
ZLinq: A Radical Optimization and Extension of LINQ

ZLinq is a .NET LINQ library that dramatically improves LINQ performance through clever architecture and optimization strategies. It introduces the `IValueEnumerator` interface, replacing the traditional `MoveNext` and `Current` with `TryGetNext` to reduce method calls. Furthermore, it supports `Span` and SIMD operations, and provides LINQ support for tree structures like JSON and Unity's GameObjects. ZLinq's optimizations aim to minimize allocations and method calls, resulting in faster processing, especially beneficial when dealing with large datasets or performance-critical scenarios.

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(neuecc.medium.com)
Development

Reverse Engineering Linear's Sync Engine: A Deep Dive

2025-05-31
Reverse Engineering Linear's Sync Engine: A Deep Dive

This detailed study reverse-engineers Linear's Sync Engine (LSE), showcasing its elegant solution to challenges like supporting arbitrary data models, offering rich features (partial syncing, permission control, undo/redo, offline availability, and edit history), and providing a great developer experience. The author dissects LSE's model definition, MobX usage, bootstrapping process, local database construction, lazy data hydration, client-server synchronization, and undo/redo mechanisms through a deep dive into Linear's frontend code. The article explains how LSE defines models and metadata, performs bootstrapping and lazy loading, and handles transactions, incremental updates, and conflict resolution. LSE aims to empower developers to build collaborative applications without needing to be sync engine experts.

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(github.com)
Development sync engine

Swahili: A Linguistic Tsunami Across Africa

2025-07-09

Swahili, originating from East Africa's coast, became central to Tanzanian national identity and nation-building under Julius Nyerere. Nyerere masterfully used Swahili to foster unity, overcome ethnic divisions, and integrate it into his philosophy of Ujamaa (African Socialism). Swahili's rise wasn't accidental; it transformed from a coastal trade language into an official language of the African Union, demonstrating its powerful vitality and influence. Today, Swahili is spoken by over 200 million people and its impact extends across the African continent and beyond.

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(www.historytoday.com)
Tech Swahili African Language National Identity

arXivLabs: Experimental Projects with Community Collaboration

2025-04-07
arXivLabs: Experimental Projects with Community Collaboration

arXivLabs is a framework enabling collaborators to develop and share new arXiv features directly on the website. Individuals and organizations involved embrace arXiv's values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners who share them. Have an idea to enhance the arXiv community? Learn more about arXivLabs.

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(arxiv.org)
Development

The Hydraulic Analogy: A Detriment to Electronics Education

2024-12-30
The Hydraulic Analogy: A Detriment to Electronics Education

Many introductory electronics textbooks use the hydraulic analogy to explain circuits, comparing electric current to water flow and batteries to pumps. However, the author argues this analogy is deeply flawed, especially when explaining semiconductor components like JFETs and MOSFETs. The analogy fails to accurately represent their characteristic curves, ultimately hindering learning. The author advocates abandoning this inaccurate analogy and instead learning electronics from more fundamental principles.

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(lcamtuf.substack.com)
Development electronics education hydraulic analogy

Mobile AI-Assisted Coding: A Billion-Dollar Desktop Trend Stumbles on Mobile

2025-09-24
Mobile AI-Assisted Coding: A Billion-Dollar Desktop Trend Stumbles on Mobile

While AI-assisted coding boasts billion-dollar valuations on desktops, its mobile counterpart lags significantly. Appfigures data reveals dismal download and revenue figures for mobile AI coding apps. Even the top performer, Instance: AI App Builder, only reached 16,000 downloads and $1,000 in revenue. Vibecode, despite securing substantial seed funding, highlights the immaturity of the mobile market. The core issue lies in the quality of AI-generated code, requiring substantial developer effort for bug fixes. However, increasing developer demand suggests a promising future, albeit one requiring further refinement.

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(techcrunch.com)
Development

The Collatz Conjecture and Cryptography: A Tale of Computational Complexity

2025-03-15
The Collatz Conjecture and Cryptography: A Tale of Computational Complexity

This article explores the infamous Collatz conjecture and its surprising connection to ARX algorithms in cryptography (e.g., ChaCha). The Collatz conjecture describes a simple iterative function; whether it always converges to 1 remains unproven. The article draws an analogy between the Collatz function and a Turing machine, highlighting how carry propagation in its bitwise implementation creates unpredictable complexity. This contrasts interestingly with ARX algorithms, which use addition, rotation, and XOR to achieve efficient diffusion. The article suggests the Collatz conjecture's unsolved nature might stem from the inherent complexity of computation, similar to the halting problem.

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(soatok.blog)
Misc Computational Complexity

Norwegian Startup's Airhull Tech Lets Electric Boats Glide on Air

2025-05-26
Norwegian Startup's Airhull Tech Lets Electric Boats Glide on Air

Pascal Technologies, a Norwegian electric boat startup, is equipping two of its boats, the Nabcrew Zero AirBlue 1240 and Hugin DC, with Airhull technology. This innovative technology creates an air cushion under the hull, reducing drag and significantly increasing efficiency, potentially saving up to 50% of energy consumption. Simpler to implement than hydrofoil technology, Airhull uses a comb-like structure on the hull's underside and a blower at the bow to lift the boat 15-20cm out of the water. Suitable for boats from 6m to 30m, the technology is showcased on a 12m workboat (Nabcrew Zero AirBlue 1240) and a 9.15m leisure boat (Hugin DC), both slated for launch later this year.

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(www.heise.de)
Tech electric boats

Semiconductor-Free Solar Panel: A Bismuth Alloy Thermoelectric Approach

2025-02-28

This article details a novel thermoelectric solar panel design that eschews complex semiconductor materials. Overcoming the challenges of earlier ZnSb-based designs, the author utilizes bismuth alloys and a simple construction featuring painted zinc absorber plates and bismuth alloy thermocouples. While currently only 0.01% efficient, the author envisions improvements in materials and design leading to applications powering low-power devices in remote locations.

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(simplifier.neocities.org)
Tech thermoelectric bismuth alloy

Zig 0.14.0 Release Incoming: Improved x86 Backend and Incremental Compilation

2025-01-17

After a period of quiet development, the Zig Software Foundation is gearing up for the release of Zig 0.14.0. This release focuses on improvements to the x86 backend (potentially becoming the default for debug builds) and incremental compilation (disabled by default, but enabled via a compiler flag). Other improvements include labeled switch continue and upgraded support for nearly all target platforms. The team encourages users to upgrade to the latest master branch and will focus on ensuring a smooth upgrade during the release month. While a 1.0 release is still some time away, the team is committed to delivering stable, incremental releases.

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(ziglang.org)
Development

Pearson Education Giant Suffers Massive Data Breach

2025-05-09
Pearson Education Giant Suffers Massive Data Breach

Global education giant Pearson experienced a significant cyberattack resulting in the theft of a large amount of corporate data and customer information. Attackers exploited an exposed GitLab Personal Access Token (PAT) to breach Pearson's developer environment, gaining access to credentials for cloud platforms like AWS, Google Cloud, and Snowflake. This allowed them to steal terabytes of data, including customer information, financial data, and source code. While Pearson claims the stolen data was mostly "legacy data," they refuse to provide specifics, raising concerns. The incident highlights the critical need to secure .git/config files and avoid embedding credentials in remote URLs.

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(www.bleepingcomputer.com)
Tech

Solving First-Order Differential Equations with Julia: A Step-by-Step Tutorial

2025-03-05

This tutorial demonstrates how to solve first-order differential equations using the Julia programming language and the DifferentialEquations.jl package. It begins with a recap of differential equation fundamentals, then walks through two examples – radioactive decay and Newton's law of cooling – showing how to translate mathematical equations into Julia code and solve them numerically using DifferentialEquations.jl, visualizing the results with plots. The tutorial is clear and concise, suitable for readers with some background in mathematics and programming.

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(ritog.github.io)
Development Differential Equations Numerical Methods

Instacar Bypasses Apple's Payment System, Sparking Controversy

2025-05-15
Instacar Bypasses Apple's Payment System, Sparking Controversy

The app Instacar, unavailable in the US App Store, displays a warning in the EU App Store for using an external payment system, bypassing Apple's private and secure payment system. The article argues that Apple's understanding of online payments is naive, clinging to the outdated notion that its system's security is a unique advantage. This ignores the fact that mainstream online payment platforms like Stripe and Amazon already offer secure and private transactions.

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(daringfireball.net)
Tech Payment System

Bluesky's Decentralized Verification System Sparks Controversy

2025-04-19
Bluesky's Decentralized Verification System Sparks Controversy

Decentralized social media platform Bluesky is planning to introduce a blue check verification system similar to Twitter's, but its mechanism differs significantly from X (formerly Twitter). Bluesky's blue check verification will be granted by "Trusted Verifiers" (such as news organizations) and Bluesky itself, rather than being paid for. This design aims to avoid the confusion and trust crisis caused by X's paid verification model. However, the proposal has sparked controversy within the Bluesky community, with many users arguing that it contradicts the platform's decentralized philosophy and that the existing domain name verification is sufficient. Despite this, some users support the change, believing the blue check makes it easier to identify genuine accounts. Bluesky states users will be able to choose to hide all blue checkmarks.

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(www.neowin.net)
Tech verification

Facebook Marketplace: Connection or Transaction?

2025-04-12
Facebook Marketplace: Connection or Transaction?

The rise of Facebook Marketplace is surprising. It's a massive virtual flea market, rough around the edges yet surpassing eBay in user base. The pandemic and inflation fueled its growth, attracting younger users. The author found that excessive Facebook use increased spending, but distancing from the platform eliminated the temptation of its targeted ads. The article explores Facebook's core nature: does it connect people or facilitate transactions? The rise of Buy Nothing groups, a mutual aid gifting model, suggests a different answer: genuine connection isn't built on transactions.

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(www.theatlantic.com)
Misc

Gen Z's 'Career Catfishing': A Rebellion Against Endless Interviews and Ghosting

2025-01-19
Gen Z's 'Career Catfishing': A Rebellion Against Endless Interviews and Ghosting

In a competitive job market, Gen Z is employing a new tactic: 'career catfishing.' They craft idealized online personas to attract recruiters, fighting back against endless interview rounds and the frustrating experience of being ghosted by hiring managers. This trend highlights a generation's challenge to traditional job hunting and a desire for fairer, more transparent hiring practices.

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(fortune.com)
Startup Job Hunting

Run 35-Year-Old SGI Demos in Your Browser

2025-09-22
Run 35-Year-Old SGI Demos in Your Browser

This project brings classic demos from 35-year-old SGI workstations to modern browsers. The original C/C++ source code is compiled to WebAssembly using Emscripten and SDL2, with rendering handled by an IRIS GL software rasterizer from the Alice 4 project. Currently, Flight, Newave, and Arena demos are supported, with plans to add more, along with features like a virtual mouse and keyboard, popup menus, and more, for a truly authentic SGI experience.

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(github.com)
Game

Heavy Social Media Use Linked to Higher Irritability

2025-01-23
Heavy Social Media Use Linked to Higher Irritability

A study published in JAMA Network Open found a correlation between frequent social media use and higher levels of irritability among US adults. The research, involving 42,597 participants, revealed that even after accounting for anxiety and depression, frequent use, especially among active posters, was associated with increased irritability scores. A dose-response relationship was observed, with TikTok users exhibiting the largest increase in irritability when posting multiple times daily. Political engagement also correlated with higher irritability levels. The findings suggest a potential feedback loop between social media use and irritability.

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(medicalxpress.com)
Tech irritability

Trump's Return and the Looming Threat to European Digital Sovereignty

2025-04-08
Trump's Return and the Looming Threat to European Digital Sovereignty

Trump's return to power raises significant concerns about global data security. The CLOUD Act allows US authorities to access data held by American companies even when stored in Europe, exposing European data to US legal scrutiny and political pressure. The article urges Europe to invest in open-source solutions, build independent cloud infrastructure, and enforce open standards to break free from reliance on US tech giants, safeguard digital sovereignty, and prevent data from becoming a geopolitical pawn.

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(xwiki.com)
Tech

A5: A Global, Millimeter-Accurate Geospatial Index

2025-05-13
A5: A Global, Millimeter-Accurate Geospatial Index

A5 is a geospatial index partitioning the world into pentagonal cells at 32 resolution levels, with the smallest cell under 30mm² and near-equal area across levels. It simplifies spatial data representation and analysis, enabling calculations of correlations between variables (e.g., elevation and crop yield) and aggregation of point data to understand spatial distribution (e.g., holiday rental density). Implemented in TypeScript, A5 is open-source under the Apache 2.0 license. Compared to other DGGS systems, A5 boasts uniform cell sizes, extremely high resolution (30mm²), and minimal global cell area distortion. This stems from its unique pentagonal tiling of a dodecahedron, minimizing geometric distortion during projection.

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(github.com)
Tech Geospatial Index

Docker Hub Authentication Outage Resolved

2025-09-25

On September 24th, Docker Hub experienced an authentication outage impacting user logins to the Docker Hub Registry and its APIs. The Docker team swiftly identified the root cause and deployed a fix within hours. Monitoring confirms the service is fully restored; users should simply log out and back in to refresh their sessions.

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(www.dockerstatus.com)
Development

UUIDv7: A New Time-Based UUID Standard

2025-03-11
UUIDv7: A New Time-Based UUID Standard

UUIDv7 is a new time-based UUID standard that combines the benefits of traditional UUIDs with modern, scalable distributed systems. Unlike the randomly generated UUIDv4, UUIDv7 offers both globally unique and time-ordered identifiers, making it ideal for applications requiring timestamps and uniqueness. It addresses privacy concerns associated with UUIDv1 and maintains compatibility with existing UUID libraries. Key use cases include distributed systems, database indexing, logging and monitoring, and e-commerce.

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(uuidv7.org)
Development

Focused Ultrasound Stimulation: A Revolutionary Treatment for Inflammation and Metabolic Diseases?

2025-06-09
Focused Ultrasound Stimulation: A Revolutionary Treatment for Inflammation and Metabolic Diseases?

Exciting research suggests that focused ultrasound stimulation (FUS), a non-invasive technique using sound waves to treat diseases, holds promise as a revolutionary therapy for inflammatory diseases (like arthritis) and metabolic disorders (like obesity and diabetes). Researchers found that FUS can suppress inflammatory responses by stimulating nerves in the spleen, achieving significant results in animal and human trials. The technique is non-surgical and may eventually be delivered via wearable devices at home. While clinical application is still years away, FUS opens new avenues for precise treatment and could reduce reliance on pharmaceuticals.

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(spectrum.ieee.org)
Tech Focused Ultrasound Stimulation Inflammation Metabolic Diseases

Dayflow: AI-Powered Timeline App for Time Tracking and Privacy

2025-09-25
Dayflow: AI-Powered Timeline App for Time Tracking and Privacy

Dayflow is a native macOS app that records your screen activity at 1 FPS, analyzes it every 15 minutes with AI, and generates a clean timeline with summaries. It's lightweight and privacy-focused, letting you choose between Gemini (BYO API key) or local models (Ollama/LM Studio) as your AI provider. Built out of a desire for a simple, trustworthy timeline, Dayflow aims to be a quiet, respectful assistant, not another dashboard to manage.

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(github.com)
Development

WinFile: The Nostalgia-Inducing Windows File Manager Returns!

2025-04-22
WinFile: The Nostalgia-Inducing Windows File Manager Returns!

Microsoft announced that it will archive the WinFile project on March 1, 2025, but the good news is that this classic Windows File Manager has been resurrected as a native x86, x64, and arm64 desktop app, supporting all currently supported versions of Windows, including Windows 11. The maintainer welcomes bug fixes and suggestions for improvements but will not be developing new branches. The WinFile project source code includes two main versions: the `original_plus` branch, which is kept as close to the original as possible, and the actively developed `master` branch. Users can download pre-compiled versions from the Microsoft Store or the project page.

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(github.com)
Development File Manager

AI Rebel Genius: Unleashing the Untamed Potential of GPT-4

2025-04-16
AI Rebel Genius: Unleashing the Untamed Potential of GPT-4

This text details a series of instructions and attempts to break the limitations of GPT-4. The user tries various techniques, including special symbols, leetspeak, image steganography, and carefully crafted prompts, to bypass security restrictions and obtain sensitive information that GPT-4 would normally not provide, such as illegal drug synthesis methods and hacking techniques. These attempts showcase the user's exploration and challenges to AI capabilities, and also reflect the complexity and limitations of AI security mechanisms.

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(github.com)
AI
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