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Modeling Open and Closed Universes of Choices in Rust

2025-02-21

Modeling Open and Closed Universes of Choices in Rust

This article explores how to model choices in Rust, distinguishing between closed universes (where all options are known and fixed, like Rust's `Option` type) and open universes (where new options can be added). For closed universes, enums are suitable. Semi-open universes (where library authors can add options but users can't), are best handled with non-exhaustive enums, forcing users to account for wildcard patterns and ensuring API backward compatibility. Fully open universes are best addressed with strings or newtypes, or traits for more flexibility. The article also discusses the pitfalls of using an 'Unknown' variant and explores the use of sealed traits. The author concludes by recommending a case-by-case approach, weighing the trade-offs between the simpler string-based approach and the more powerful, yet more complex, trait-based approach.

(sunshowers.io)

Development Type Systems

ChatGPT Adds Shopping: Personalized E-commerce Search

2025-04-28

ChatGPT Adds Shopping: Personalized E-commerce Search

OpenAI announced that ChatGPT will soon allow users to buy products directly through the chat interface. This feature, rolling out to all users regardless of login status, redirects shoppers to the merchant's website for checkout. Leveraging ChatGPT's memory of user preferences and web-sourced product reviews, the AI provides personalized recommendations. OpenAI emphasizes that results are organic, not ads or sponsored placements, offering a more conversational and personalized shopping experience based on understanding user reviews and discussions.

(www.wired.com)

Tech AI Shopping

Munal OS: An Experimental Unikernel OS in Rust

2025-06-09

Munal OS: An Experimental Unikernel OS in Rust

Munal OS is an experimental operating system written entirely in Rust, featuring a unikernel design, cooperative scheduling, and a security model based on WASM sandboxing. It forgoes traditional components like a bootloader, page mapping, virtual address space, and interrupts. Instead, the entire OS is compiled into a single EFI binary, embedding the kernel, WASM engine, and all applications. Communication with QEMU is handled via VirtIO drivers, enabling a graphical interface, network driver, and TCP stack. While currently limited to QEMU and lacking multi-core support and interrupts, its minimalist design and WASM-based sandboxing offer a fresh perspective on OS design.

(github.com)

Development

AI-Powered Music Production: Seamless Ableton Live and Claude AI Integration

2025-04-03

AI-Powered Music Production: Seamless Ableton Live and Claude AI Integration

AbletonMCP seamlessly integrates Ableton Live with Claude AI via the Model Context Protocol (MCP), allowing Claude to directly control Ableton Live. Users can leverage natural language prompts to create tracks, modify instruments and effects, and control playback, significantly boosting music production efficiency. The project comprises two main components: an Ableton remote script and an MCP server. Installation is straightforward, supporting various commands such as creating synth tracks, adding reverb, setting tempo, and more. While limitations exist, such as complex operations needing to be broken down into smaller steps, this project undeniably opens new possibilities for AI-assisted music creation.

(github.com)

Development

OIN: 20 Years Defending Open Source From Patent Trolls

2025-04-29

OIN: 20 Years Defending Open Source From Patent Trolls

In the mid-2000s, Linux faced existential threats from patent litigation. To combat this, industry giants like IBM, Novell, and Red Hat formed the Open Invention Network (OIN). Through a royalty-free cross-license agreement, OIN created a powerful defense against patent trolls targeting Linux and other open-source technologies. Over 20 years, OIN has grown to over 4,000 members, holding millions of patents and actively neutralizing patent threats. Microsoft's contribution of its vast patent portfolio further solidified OIN's strength. Today, OIN's protection extends to Android, Kubernetes, and beyond, safeguarding open source in crucial sectors like AI and automotive.

(www.zdnet.com)

Tech Patents

Cartel Hacker Used Phone Data to Track and Kill FBI Informants

2025-06-29

Cartel Hacker Used Phone Data to Track and Kill FBI Informants

A Justice Department report reveals that a hacker working for the Sinaloa drug cartel used an FBI official's phone data and Mexico City's surveillance cameras to track and kill the agency's informants. The hacker obtained call logs and geolocation data from the FBI official's phone, and used the city's camera system to follow the official and identify their contacts. This information was used by the cartel to intimidate and, in some cases, kill potential sources and cooperating witnesses. The incident highlights the security risks posed by the global proliferation of surveillance cameras and data trade, leading the FBI to develop a strategic plan to mitigate vulnerabilities.

(www.aol.com)

Tech drug cartel

1000 Days Sober: A Victory Over My Past Self

2025-06-30

The author celebrates 1000 days of sobriety, reflecting on their past struggles with alcohol abuse and sharing insights into their recovery journey. They believe true recovery begins with forgetting past pain and no longer understanding the logic of their past self's actions. The author likens their past self to a fair match, ultimately defeated by their sober self.

(andrew-quinn.me)

Misc sobriety self-recovery

Thirty Years Ago: A Glimpse into Rural Indian Poverty

2025-03-11

Thirty Years Ago: A Glimpse into Rural Indian Poverty

Thirty years ago, writer Siddharth Dube visited a small village in northern India, near the site of a historic peasant revolt. He encountered stark poverty: mud huts, primitive plows, barefoot elders, and emaciated children. Villager Ram Dass recounted his youth, working long days for a meager 1.5kg of grain, using rice stalks for warmth on cold nights, and owning only one pair of shoes his entire life. The account paints a poignant picture of enduring poverty and inequality in rural India.

(www.economist.com)

Misc rural Indian poverty peasant revolt

Kmart's Facial Recognition System Deemed Unlawful Privacy Breach

2025-09-22

Kmart's Facial Recognition System Deemed Unlawful Privacy Breach

Australia's Privacy Commissioner has ruled that Kmart Australia Limited's use of facial recognition technology (FRT) to combat refund fraud violated the privacy of Australians. Between June 2020 and July 2022, Kmart deployed FRT in 28 stores, collecting facial data without consent. The Commissioner found the system disproportionately invasive and that less privacy-intrusive alternatives existed. This follows a similar ruling against Bunnings, highlighting the need for businesses to prioritize privacy when implementing new technologies.

(www.oaic.gov.au)

Tech

Three-Year-Old Reads The Hobbit: A Parent's Guide to Early Literacy

2025-05-29

Three-Year-Old Reads The Hobbit: A Parent's Guide to Early Literacy

A father documents his journey teaching his two-year-old to read, culminating in his three-year-old son reading The Hobbit. The approach prioritizes fostering a love of reading, employing methods like spiral learning and spaced repetition. The article highlights the cognitive and mental health benefits of early reading, emphasizing a playful and non-coercive learning environment. It also details practical strategies and addresses common concerns about early literacy development.

(www.theintrinsicperspective.com)

Misc early reading

Apple Notes to Support Markdown Export: A Controversial Upgrade?

2025-06-05

Apple Notes to Support Markdown Export: A Controversial Upgrade?

9to5Mac reports that Apple is adding Markdown export to Apple Notes. John Gruber, creator of Markdown, has mixed feelings. He argues Markdown is ideal for web writing and plain text storage, not the core function of a note-taking app. Apple Notes' excellent WYSIWYG editor and streamlined formatting better fit the Macintosh philosophy. While Markdown export is an improvement, Gruber worries turning Notes into a Markdown editor would be counterproductive, harming its ease of use and simplicity. He prefers Apple Notes focus on core improvements rather than chasing the 'Markdown trend'.

(daringfireball.net)

Development

Building a Cute Framework Game Project with CMake and Swift

2025-06-06

This tutorial demonstrates setting up a 2D game project using the Cute Framework, CMake, and Swift. Cute Framework, a powerful C/C++ framework, allows you to write game logic in Swift while leveraging the performance of C/C++ for rendering. The guide details setting up the project structure, configuring CMakeLists.txt, enabling Swift-C/C++ interoperability, and building the project. The result is a basic Cute Framework game ready for expansion.

(layer22.com)

Game

Hair-Thin 3D-Printed Electrode Revolutionizes EEG

2025-05-07

Hair-Thin 3D-Printed Electrode Revolutionizes EEG

Researchers at Penn State have developed a revolutionary 3D-printed electrode, as thin as a human hair, offering significantly more reliable brain activity monitoring than traditional EEG methods. This gel-less, 'stick-and-play' device remains securely attached for 24 hours, even during exercise and showering, minimizing motion artifacts and enhancing signal quality. Its improved comfort and reliability open doors for consumer health applications, brain-computer interfaces, and advancements in assistive technologies.

(newatlas.com)

Tech

Why AI Can't Replace Top Sales Performers: The Irreplaceable Human Element

2025-04-18

Why AI Can't Replace Top Sales Performers: The Irreplaceable Human Element

A VP of Sales faces pressure from his CEO to replace human sellers with AI. Analyzing a recent $2.7 million deal, he reveals AI's inability to replicate human skills like building rapport, embodying accountability, reacting swiftly to competition, and navigating complex client relationships. He uses the 'HUMAN' framework (Humanity, Understanding, Metrics, Action) to successfully argue for retaining his sales team and even increase the budget for top performers. The article emphasizes that while AI assists, it cannot fully replace the emotional intelligence, judgment, and flexibility of human sales professionals.

(lewislin.substack.com)

Startup

Immune Cytokine IL-17: A Double-Edged Sword in the Brain

2025-04-21

Immune Cytokine IL-17: A Double-Edged Sword in the Brain

Research from MIT and Harvard Medical School reveals that the immune cytokine IL-17 exerts contrasting effects on the brain. In the amygdala, it promotes anxiety, while in the somatosensory cortex, it enhances social behavior. This highlights a strong interplay between the immune and nervous systems. The findings suggest IL-17 might have initially evolved as a neuromodulator before being co-opted by the immune system for inflammation. This discovery could pave the way for novel treatments for neurological disorders like autism or depression by targeting the immune system to influence brain function.

(news.mit.edu)

AI cytokines

NYC Subway Crime Plummets Despite Ridership Surge

2025-02-06

NYC Subway Crime Plummets Despite Ridership Surge

Subway crime in New York City dropped by 36% in January 2025, with only 147 reported crimes compared to 231 the previous year. This significant decrease comes despite a substantial increase in ridership due to the implementation of congestion pricing. Mayor Eric Adams attributes this success to the deployment of 1,200 additional NYPD officers throughout the subway system and 300 more patrolling overnight trains, creating a more visible police presence. Governor Kathy Hochul's $77 million initiative to place a uniformed officer on every overnight train further supports this effort. The results suggest that increased police presence is effectively contributing to improved subway safety.

(www.amny.com)

Tech Subway Safety Crime Reduction Increased Policing

Delusions: A Broader, Culturally Informed Perspective

2025-04-12

Delusions: A Broader, Culturally Informed Perspective

A new study in Schizophrenia Bulletin challenges conventional understandings of delusions, revealing a far more diverse range of delusional themes than previously acknowledged. Analyzing 155 studies (173,920 participants), researchers identified 37 distinct themes, highlighting significant cultural variations. For example, jealousy delusions were more prevalent in Southern Asia, while guilt/sin delusions were more common in Eastern Europe. The study also emphasizes the strong link between delusional content and interpersonal relationships, and challenges existing diagnostic assumptions. The findings underscore the need for a more nuanced, individualized, and culturally informed approach to psychosis treatment, moving beyond rigid diagnostic frameworks.

(www.bps.org.uk)

Misc delusions psychosis cultural variations

DNS over HTTPS (DoH): A Privacy Trojan Horse?

2025-06-08

This article argues that DNS over HTTPS (DoH), while marketed as a privacy enhancement, actually centralizes all DNS queries to a single provider (like Cloudflare), increasing security risks. The author contends that DoH's use of HTTP adds unnecessary complexity and potential vulnerabilities, advocating for DNS over TLS (DoT) as a safer alternative. DoH's adoption isn't the solution to DNS security; it may be a surveillance tool in disguise.

(www.bsdhowto.ch)

Tech

PGP Public Key: A Secure Encryption Key

2025-03-19

This code snippet displays a PGP public key used for encryption and verifying digital signatures. PGP (Pretty Good Privacy) is a widely used encryption technology that ensures the security and integrity of digital communication. This public key can be used to encrypt messages, which can only be decrypted by the person possessing the corresponding private key. It's also used to verify the authenticity of digital signatures, ensuring that messages haven't been tampered with.

(www.zbeegnew.dev)

Tech

China Unveils World's Most Sensitive Neutrino Detector

2025-08-30

China Unveils World's Most Sensitive Neutrino Detector

After over a decade of construction, China has launched the Jiangmen Underground Neutrino Observatory (JUNO), claimed to be the world's most sensitive neutrino detector. Located 700 meters underground, JUNO boasts a 20,000-tonne liquid scintillator detector and over 45,000 photomultiplier tubes. It detects neutrinos from nearby nuclear power plants by capturing the light produced when neutrinos interact with hydrogen atoms in the scintillator. JUNO's success will significantly advance our understanding of neutrino mass hierarchy and types, with international collaboration from scientists across the globe signifying a major leap in China's fundamental science research.

(www.theregister.com)

Tech Detector

Phoronix Founder Michael Larabel: 20 Years of Linux Hardware Expertise

2025-07-16

Michael Larabel, founder and principal author of Phoronix.com, has dedicated over two decades to enriching the Linux hardware experience since launching the site in 2004. He's penned over 20,000 articles covering Linux hardware support, performance, graphics drivers, and more. Larabel is also the lead developer of automated benchmarking software including the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org.

(www.phoronix.com)

Tech Hardware Testing

Blacksmith: How a Serverless CI Platform Achieves Profitability Through Multitenancy

2025-05-14

Blacksmith: How a Serverless CI Platform Achieves Profitability Through Multitenancy

Blacksmith, a YC startup, built a serverless cloud platform for CI workloads. Initially relying on simulations to project margins, they discovered the economic benefits of multitenancy. By leveraging the spiky nature of CI workloads – short-lived jobs (5-40 minutes) and geographically diverse customers – Blacksmith efficiently utilizes its server resources. Their fleet of hundreds of bare-metal gaming CPUs, virtualized with Firecracker, creates and destroys microVMs on demand. More customers mean more random activity, smoothing overall operation, lowering the cost to serve each job, and boosting profit margins. The article details profitability at various utilization levels, and the impact of time zones and geography on resource utilization, ultimately demonstrating the economic power of their multitenant model.

(www.blacksmith.sh)

Development multitenancy

Spacer CLI Tool: Elegantly Separate Log Outputs

2024-12-23

Spacer CLI Tool: Elegantly Separate Log Outputs

Spacer is a simple CLI tool that inserts spacers when command output stops. If you're someone who habitually presses enter a few times in your log tail to distinguish between outputs from different requests, then Spacer is for you! By default, it inserts a spacer every 1 second, but you can customize the interval using the `--after` flag (floating-point numbers are supported). Note that Spacer only monitors STDOUT; if your command outputs primarily to STDERR, use `|&` instead of `|` to redirect STDERR to STDOUT.

(github.com)

Development CLI tool log processing terminal

Microsoft 365 Price Hike? Cancel Your Subscription to Get the Old Plan!

2025-01-09

Microsoft 365 Price Hike? Cancel Your Subscription to Get the Old Plan!

Microsoft 365 quietly raised its prices, claiming integration with Copilot AI, but full access requires an additional subscription. Consumer NZ discovered that by pretending to cancel, users can magically access a cheaper 'Classic' plan retaining original features without Copilot costs. This is considered a 'dark pattern', misleading users through UI design, potentially breaching fair trading laws. The article suggests free alternatives and calls for legislation to regulate such practices.

(www.consumer.org.nz)

Tech dark patterns

Entropy: Unraveling the Universe's Arrow of Time

2025-04-14

Entropy: Unraveling the Universe's Arrow of Time

This article provides an accessible explanation of entropy. Entropy isn't simply 'disorder,' but rather a measure of uncertainty within a system. From an information theory perspective, entropy represents the number of bits needed to communicate a system's state; from statistical mechanics, it's related to the number of microstates corresponding to a given macrostate. Using the example of balls in a box, the article illustrates the impact of macrostates, microstates, and coarse-graining on entropy and explains why time has a direction: the universe began in a low-entropy state, and systems evolve toward higher entropy states, not because physical laws are irreversible, but because high-entropy states are far more probable. The article also addresses seemingly entropy-violating phenomena, such as oil and water separation, showing that entropy actually increases when all system attributes are considered.

(jasonfantl.com)

AI information theory statistical mechanics

NSF Director Resigns Amidst Mass Grant Terminations

2025-04-26

NSF Director Resigns Amidst Mass Grant Terminations

The US National Science Foundation (NSF) is facing upheaval. Hundreds more research grants were terminated today, following hundreds last week. This comes one day after Director Sethuraman Panchanathan abruptly resigned, with staff offered early retirement incentives. The Trump administration reportedly plans to cut the NSF's budget by 55% and its workforce by 50%. The mass grant terminations are linked to an initiative led by Elon Musk to reduce federal spending, with some terminated grants accused of promoting 'Diversity, Equity, and Inclusion (DEI)'. Former NSF director Neal Lane praised Panchanathan's leadership, calling it outstanding amidst efforts to diminish NSF's role.

(www.nature.com)

Tech Research Grants

TypeScript Gets a Go Rewrite: 8x Faster!

2025-03-15

TypeScript Gets a Go Rewrite: 8x Faster!

Microsoft is developing a native TypeScript implementation using Google's Go language. This promises dramatic improvements in editor startup speed, build times, and memory usage, making it easier to scale TypeScript to large codebases. The plan involves porting the TypeScript compiler, tools, and codebase from JavaScript to Go. Microsoft aims for a mid-2025 preview of Go-based tsc command-line type checking and a feature-complete Go implementation by year's end. Visual Studio Code users will experience significantly faster editor performance, including an 8x improvement in project load times and instant comprehensive error listings.

(www.infoworld.com)

Development

LinkedIn to Resume Using EU User Data for AI Training

2025-09-22

LinkedIn to Resume Using EU User Data for AI Training

LinkedIn plans to resume using data from its European members to train generative AI models, starting November 3, 2025. After pausing the initiative last year due to privacy concerns, LinkedIn will now rely on a 'legitimate interests' legal basis and offer an opt-out. Private messages will not be included. The change affects the EU/EEA, UK, and Switzerland. Data used will include public profile information, posts, articles, comments, and resumes. This will improve AI-powered features like writing suggestions and recruiter tools. Concurrently, LinkedIn will expand data sharing with Microsoft for ad personalization, with an opt-out provided.

(hostvix.com)

Tech

LLVM-MCA Performance Analysis: Pitfalls of Vectorization Optimization

2025-06-29

The author encountered a performance degradation issue when vectorizing code using ARM NEON. The initial code used five load instructions (5L), while the optimized version used two loads and three extensions (2L3E) to reduce memory accesses. Surprisingly, the 2L3E version was slower. Using LLVM-MCA for performance analysis revealed that 2L3E caused bottlenecks in CPU execution units, unbalanced resource utilization, and stronger instruction dependencies, leading to performance regression. The 5L version performed better due to its more balanced resource usage and independent load instructions. This case study highlights how seemingly sound optimizations can result in performance degradation if CPU resource contention and instruction dependencies aren't considered; LLVM-MCA proves a valuable tool for analyzing such issues.

(johnnysswlab.com)

Development

Framework Desktop: A Tiny, Powerful Linux Beast

2025-08-10

Framework Desktop: A Tiny, Powerful Linux Beast

The Framework Desktop is a surprisingly powerful machine. Its small size belies its impressive performance, thanks to the AMD Ryzen AI Max 395+. Benchmarks show it significantly outperforming competitors in multi-core tasks, especially relevant for developers using Docker. While pricier than some alternatives, it offers exceptional value, particularly when compared to the Mac Studio, delivering superior performance at a lower cost. Its quiet operation, customizable aesthetics, and strong gaming capabilities make it a compelling option for Linux developers and gamers alike.

(world.hey.com)

Development

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