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Redis Vector Sets: Replicating Hacker News Account Style Detection

2025-04-16

Inspired by a three-year-old Hacker News post about detecting similar accounts using cosine similarity, Antirez, using the new vector set functionality in Redis 8 RC1, replicated the experiment. He downloaded 10GB of Hacker News comment data, cleaned and preprocessed it to generate a JSONL file containing users and their word frequency vectors. Then, using the Burrows-Delta method, he normalized the word frequency vectors and inserted them into Redis vector sets. Finally, using the VSIM command, similar users with similar writing styles can be quickly found. The project code has been open-sourced, and an online demo website is available.

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(antirez.com)
Development Style Detection

OpenAI's Memory Upgrade: A Transformative Leap for AI

2025-04-17
OpenAI's Memory Upgrade: A Transformative Leap for AI

OpenAI's memory upgrades mark the start of what may be the most transformative shift since GPT-3's debut. Previously, AI felt like a brilliant but forgetful friend. Now, memory changes everything. AI will remember your habits, thought patterns, and preferences, becoming a lifelong companion and assistant. This will lead to massive productivity gains and challenge the conventional wisdom that AI lacks defensibility. OpenAI might launch a "Sign in with OpenAI" product, allowing third-party developers to directly access its memory layer, building more powerful applications. The competition will center around memory; whoever captures it faster wins.

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(jeffmorrisjr.substack.com)
AI AI memory

The Construction and Challenges of Technical Identity: A Psychologist's Perspective

2025-04-17
The Construction and Challenges of Technical Identity: A Psychologist's Perspective

A psychologist specializing in software environments reflects on the social construction of the label “technical.” She argues that “technical” is not an objective assessment of skill but a reflection of power structures, excluding those who don't conform to established norms. Through personal experiences and research, the author reveals the gender, class, and racial biases present in the tech industry and the resulting inequalities. She calls for breaking down inherent technical identity boundaries, focusing on the humanity behind technology, and building a more inclusive and equitable tech ecosystem.

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(www.fightforthehuman.com)
Misc tech sociology

Google Found Guilty of Antitrust Violations Again: Ad Tech Empire Under Siege

2025-04-17
Google Found Guilty of Antitrust Violations Again: Ad Tech Empire Under Siege

A federal judge has ruled that Google illegally exploited its online marketing technology to boost profits, marking the second antitrust violation against the tech giant in less than a year. The ruling centers on Google's dominant position in ad tech, accusing the company of manipulating prices and harming competition. While Google plans to appeal, the decision could force the sale of parts of its advertising technology, significantly impacting its massive advertising empire. This case highlights the complexities of Google's advertising ecosystem built over a decade of acquisitions, with repercussions felt throughout the online advertising industry.

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(apnews.com)
Tech Ad Tech

Trek and Electra Raise Bike Prices to Offset Tariffs

2025-04-18
Trek and Electra Raise Bike Prices to Offset Tariffs

Trek and Electra bicycle retailers received an email informing them of immediate price increases on most models due to a 10% tariff surcharge announced on April 2nd. Trek stated they minimized the impact on entry-level models and that the price increase includes backorders to avoid inventory rushes. Retailers will see increased inventory value and profit margins. Specialized Bicycles will separately list the 10% tariff surcharge on B2B invoices after May 1st.

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(www.bicycleretailer.com)
Hardware bikes

From Audiobooks to Essays: A Writer's Journey

2025-04-16
From Audiobooks to Essays: A Writer's Journey

Starting with reflections on listening to the audiobook of Gabrielle Zevin's 'Tomorrow, and Tomorrow, and Tomorrow,' the author delves into the relationship between audiobooks and traditional reading, and their own experiences in the creative process and recording audiobooks. The essay showcases personal reflections and, based on reader feedback, the author's decision to share more directly about life, writing, and opinions. The piece also promotes a podcast and writing workshop the author is involved with.

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(newsandreviews.substack.com)
Misc audiobooks

Access Top AI Models from OpenAI, Google, and More

2025-04-17
Access Top AI Models from OpenAI, Google, and More

A new platform offers one-stop access to cutting-edge AI models from leading companies like OpenAI, Google, Anthropic, DeepSeek, Mistral, and Meta. This includes models such as ChatGPT-4, Claude, Gemini, and Llama, allowing users to explore the unique capabilities of each. This signifies a major leap in accessibility to top-tier AI technology, opening up new possibilities for developers and researchers.

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(zuni.app)
AI

Deployment-Ready Sandboxed Browser Environments

2025-04-16
Deployment-Ready Sandboxed Browser Environments

Anthropic introduces innovative sandboxed Chrome browser environments, built on containers/Docker and Unikraft, providing ready-to-use browsers for agentic workflows needing internet access. These environments support Chrome DevTools frameworks (like Playwright and Puppeteer) and offer GUI access for visual monitoring and remote control. The Unikernel version boasts automated standby, state snapshotting, and extremely fast cold starts, ideal for applications requiring low-latency event handling. Additionally, Anthropic is hiring backend engineers to work on the future of AI infrastructure.

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(github.com)
Development sandboxed browser

Columbia Student Arrested by ICE During Citizenship Interview

2025-04-15
Columbia Student Arrested by ICE During Citizenship Interview

Mohsen Mahdawi, a Columbia University philosophy student, was abducted by ICE agents during a US citizenship interview in Vermont. The agents, masked and hooded, took him away in an unmarked car. Mahdawi, a green card holder and outspoken advocate for Palestinians, was reportedly arrested in retaliation for his activism. A judge has issued a temporary restraining order preventing his removal from Vermont or deportation. Mahdawi, a committed Buddhist, previously appeared on 60 Minutes discussing student protests against Israel's response to Hamas's October 7th attack, stating that fighting for Palestinian freedom and against antisemitism must go hand-in-hand.

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(dailynous.com)
Misc

Add-Ends: A Number Puzzle Game

2025-04-14

Add-Ends is a number puzzle game where you swap black tiles to make all rows and columns add up to the target number. The game offers easy, intermediate, and hard difficulty levels, along with a custom puzzle generator allowing players to choose grid size and difficulty. A zen mode hides the timer for a more focused experience.

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(madmonk13.github.io)
Game number puzzle

Figma Sends Cease and Desist to AI Startup Lovable Over 'Dev Mode'

2025-04-15
Figma Sends Cease and Desist to AI Startup Lovable Over 'Dev Mode'

Design giant Figma has sent a cease-and-desist letter to Lovable, a rising AI no-code startup, over the use of the term "Dev Mode." While "dev mode" is a common term in software development, Figma holds a trademark for the shortcut. This isn't just a trademark dispute; it highlights the potential for larger tech companies to stifle competition. Lovable, using "vibe coding" to let users build with text prompts, directly challenges Figma's market. The outcome will be interesting, especially considering Lovable's seemingly unconcerned reaction.

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(techcrunch.com)
Tech AI No-Code

The Toxic Lady: A Medical Mystery That Baffles Experts

2025-04-15
The Toxic Lady: A Medical Mystery That Baffles Experts

In 1994, Gloria Ramirez, a cancer patient, triggered a bizarre incident in a hospital ER. Multiple medical staff experienced fainting, convulsions, and other symptoms after her arrival, leading to the ER's immediate lockdown. While the official investigation concluded it was mass hysteria, several staff members suffered significant organ damage, fueling skepticism. A theory suggests Ramirez's self-medication with DMSO transformed into the highly toxic dimethyl sulfate during treatment, causing the incident. However, this theory lacks definitive proof, and Ramirez's death remains a mystery, prompting reflection on medical systems and scientific explanations.

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(thartribune.com)
Misc medical mystery mass hysteria

AI Writing Assistant: My New Era of Writing

2025-04-09
AI Writing Assistant: My New Era of Writing

The author shares their experience using AI-assisted writing, significantly increasing writing efficiency and enjoyment. AI not only helps them quickly create long articles but also expands their writing ideas and even generates unexpected creative inspiration. The author believes that AI-assisted writing is not a simple replacement but a human-computer collaboration that improves the efficiency of the creation process and stimulates creativity, changing their writing style. They will continue to explore the boundaries of AI and human creation and redefine reader expectations for the newsletter.

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(contraptions.venkateshrao.com)
Development writing efficiency creative inspiration

Small ISP Takes on the Giants: Bringing High-Speed Internet to Underserved Areas

2025-04-16
Small ISP Takes on the Giants: Bringing High-Speed Internet to Underserved Areas

Frustrated by poor service from major ISPs, network architect Mauch spent five years building his own fiber network, bringing affordable, high-speed internet to underserved areas of Washtenaw County, Michigan. He secured $2.6 million in government funding to offer 100Mbps and 1Gbps plans, aiming to complete half the project by the end of 2023. This contrasts sharply with major ISPs' exorbitant line extension fees, highlighting government efforts to bridge the digital divide. Mauch's story showcases individual initiative and the crucial role smaller ISPs play in expanding internet access.

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(arstechnica.com)
Tech fiber network broadband deployment

Challenging the Big Bang: New Model Replaces Dark Matter and Dark Energy

2025-04-18
Challenging the Big Bang: New Model Replaces Dark Matter and Dark Energy

Dr. Richard Lieu from the University of Alabama in Huntsville proposes a novel cosmological model that replaces the Big Bang with a series of temporal singularities to explain the universe's expansion. This model obviates the need for dark matter or dark energy to account for the universe's accelerated expansion and the formation of structures like galaxies. It posits that the universe expands due to step-like bursts of 'transient temporal singularities' injecting matter and energy, happening too quickly to be observed. These singularities generate negative pressure, similar to dark energy, causing accelerated expansion. Future validation will involve deep-field observations using ground-based telescopes.

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(phys.org)
Tech Dark Matter Dark Energy

ActorCore: Stateful Serverless That Runs Anywhere

2025-04-16
ActorCore: Stateful Serverless That Runs Anywhere

ActorCore is a TypeScript framework for easily building stateful, AI agent, collaborative, or local-first applications. It eliminates the need for databases and ORMs, offering blazing-fast read/write speeds by storing state on the same machine as the compute. Deploy to Rivet, Cloudflare, Bun, Node.js, and more. Built-in low-latency events enable real-time state updates and broadcast changes. Its unique edge-data storage provides instant interactions. While currently not ideal for OLAP, data lakes, graph databases, and highly relational data, it's constantly improving and aims to become the universal way to build and scale stateful serverless applications.

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(github.com)
Development actor model

Massive City Data Analysis Requests: A Large-Scale Data Science Project

2025-04-13

This list comprises a large number of city data analysis requests, covering vaccination rates, flood risk assessments, correlations between diseases and environmental factors, renewable energy adoption rates, transportation impacts, housing prices, crime rates, education funding, air quality, and more. These requests span numerous neighborhoods across multiple US cities, requiring extensive data collection and analysis—a massive data science undertaking.

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(askcrystal.info)
Misc

Single-Cell Sequencing Reveals Epigenetic Remodeling in White Adipose Tissue of Obese Mice and Humans

2025-04-17
Single-Cell Sequencing Reveals Epigenetic Remodeling in White Adipose Tissue of Obese Mice and Humans

This study employed single-cell RNA sequencing (snRNA-seq), CUT&TAG, and ATAC-seq to investigate white adipose tissue (WAT) in obese mice and humans, revealing significant alterations in the epigenetic landscape of WAT cell types during weight loss. A portion of gene expression changes persisted, suggesting an epigenetic memory mechanism of obesity. Researchers analyzed samples from three independent human studies (MTSS, LTSS, and NEFA) and a diet-induced obesity mouse model. Multi-omics analysis revealed changes in WAT cell types and their association with metabolic function.

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(www.nature.com)
AI white adipose tissue

DragonFlyBSD's Next-Gen Disk Encryption: dm_target_crypt_ng

2025-04-13

DragonFlyBSD has a major update: dm_target_crypt_ng, a next-generation disk encryption implementation. Developer Michael Neumann re-engineered the DM-crypt code for improved performance and interactivity. The new version ditches opencrypto and cryptodev, opting for a simplified symmetric block cipher API and using two worker pools for efficiency. Currently supporting AES-CBC and AES-XTS, with plans to add Twofish and Serpent. This update significantly improves system responsiveness, providing a smoother disk encryption experience for DragonFlyBSD users. It's expected to become the default in the upcoming DragonFlyBSD 6.4 release.

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(www.phoronix.com)
Development

ZFS Compression Paradox: Logical vs. Physical Blocks

2025-04-17

A 256KB zero file created with `dd` on a ZFS filesystem with compression enabled exhibits a puzzling behavior: `ls -l` shows its size as 256KB, but `ls -s` and `ls -slh` show a much smaller size, almost zero. This is due to ZFS's efficient compression resulting in a minimal number of physical blocks. The article explores three ways to measure file size: logical size (in bytes), physical block count, and logical block count. It points out that the POSIX `st_blocks` field doesn't specify which size to report, leading to potential changes in `st_blocks` value when moving files between filesystems, and even potential file size expansion exceeding the capacity of the new filesystem.

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(utcc.utoronto.ca)
Development

Tract's Post-Mortem: Why a UK Proptech Startup Failed

2025-04-16
Tract's Post-Mortem: Why a UK Proptech Startup Failed

Tract, a UK proptech startup, aimed to tackle Britain's housing crisis by streamlining planning permissions. After raising £744,000 in pre-seed funding, they iterated through several business models, including developer site-sourcing, free landowner appraisals, acting as a tech-enabled land promoter, and finally, an AI-powered planning document platform. Despite building technically impressive products, Tract ultimately failed to secure a viable venture-scale business model. The British property market's conservatism, low willingness to pay for software, and the operational complexities of land promotion proved insurmountable. After nearly two years without revenue, they returned capital to investors and shared their post-mortem, offering valuable lessons for future founders on market selection, business model validation, and the importance of prioritizing commercial traction over technology development.

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(buildwithtract.com)
Startup proptech

Rust to C Compiler Update: 96% Core Test Coverage!

2025-04-12

Significant progress has been made on a Rust to C compiler project, achieving a 95.9% core test pass rate and culminating in a presentation at Rust Week. The post details fixes for 128-bit integer intrinsics, checked arithmetic, and subslicing bugs. Improvements in C compiler compatibility are also discussed, along with a move towards a more memory-efficient internal IR. Challenges such as difficulties obtaining compilers for certain platforms are acknowledged, but the author remains committed to increasing C99 compliance and broader platform support. Future plans include completing a deep dive into Rust panics and developing a memory profiler.

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(fractalfir.github.io)
Development C Compiler

Formance: Rewriting the Rules of Developer-Finance Interaction

2025-04-17
Formance: Rewriting the Rules of Developer-Finance Interaction

Formance is on a mission to redefine how developers interact with money as a first-class primitive, enabling the composition of financial applications. Currently hidden within permissioned, vendor-locked infrastructure, money needs to be rewired to empower product-focused companies. The Formance Platform provides open-source, agnostic primitives for engineers, allowing integration with their chosen financial partners. Formance is globally native, serving enterprise clients worldwide, 24/7, to build and scale financial applications.

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(www.ycombinator.com)
Development

Classic Outlook Turning into a CPU Hog: Microsoft Responds

2025-04-17
Classic Outlook Turning into a CPU Hog: Microsoft Responds

Microsoft has acknowledged that Classic Outlook is experiencing unexpectedly high CPU usage, spiking up to 30-50%, leading to increased power consumption. Users reported the issue as early as November 2024. While Microsoft claims to be investigating, the only workaround involves registry edits, a less-than-ideal solution for enterprise users. Some speculate this is a tactic to push users towards the newer Outlook client, despite its lacking features.

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(www.theregister.com)
Tech CPU Usage

Ronin the Rat: A World Record for Landmine Detection

2025-04-14
Ronin the Rat: A World Record for Landmine Detection

Ronin, an African giant pouched rat, has set a new world record for landmine detection. Between August 2021 and February 2025, he located 109 landmines and 15 unexploded ordnance in Cambodia. Ronin's incredible sense of smell highlights the vital role animals can play in clearing landmines, a significant threat in post-conflict zones. His achievement underscores the ongoing need for landmine clearance efforts, given the millions of unexploded devices still buried worldwide. Ronin's work with APOPO, a Belgian nonprofit, showcases the effectiveness of using rats for this dangerous task.

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(www.cnn.com)
Tech landmine detection animal

Whenever: Typed, DST-Safe Datetimes for Python

2025-04-13
Whenever: Typed, DST-Safe Datetimes for Python

Tired of Python's `datetime` pitfalls? Whenever offers typed, DST-safe datetime operations with unmatched performance, outpacing other third-party libraries and often the standard library itself. Choose between a high-performance Rust implementation or a pure Python version for ease of use. It addresses the standard library's shortcomings in DST handling and type checking, providing a clean API for writing correct datetime code.

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(github.com)
Development datetime

Google Suspends 39.2 Million Ad Accounts in 2024, AI-Powered Fraud Fight Intensifies

2025-04-16
Google Suspends 39.2 Million Ad Accounts in 2024, AI-Powered Fraud Fight Intensifies

Google suspended a staggering 39.2 million advertiser accounts in 2024, more than triple the number from the previous year, showcasing its aggressive stance against ad fraud. Leveraging large language models (LLMs) and advanced detection methods, Google proactively identified and suspended the vast majority of fraudulent accounts before they could serve ads. The company also implemented technical countermeasures against deepfakes and updated policies, resulting in a significant drop in reported deepfake ads. While acknowledging concerns about fairness, Google highlighted its appeal process and commitment to improving transparency and communication with advertisers.

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(techcrunch.com)
Tech ad fraud AI anti-fraud Google Ads

Nanotech Breakthrough: siRNA and Liposomes Team Up to Fight Deadly Fungal Infections

2025-04-13
Nanotech Breakthrough: siRNA and Liposomes Team Up to Fight Deadly Fungal Infections

Fungal infections are rising globally, and current antifungals are proving ineffective. Researchers from the University of Würzburg, Germany, have achieved a breakthrough, using nanotechnology to deliver small interfering RNAs (siRNAs) combined with Amphotericin B to specifically target the dangerous mold *Aspergillus fumigatus*. This approach silences crucial fungal genes, inhibiting growth and paving the way for new antifungal therapies. The study ingeniously combines RNA interference with optimized liposomal delivery, overcoming the challenge of siRNA penetrating the fungus's thick cell wall. This marks the first successful application of this technology against a human pathogenic fungus in infection models and utilized insect larvae, reducing mammalian animal testing. The results demonstrate significantly reduced fungal growth, offering a promising new weapon against the growing threat of drug-resistant fungal infections.

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(phys.org)
Tech Nanotechnology RNA interference Antifungal

Data Science for HR in Large Organizations: Beyond Recruitment

2025-04-16
Data Science for HR in Large Organizations: Beyond Recruitment

This article argues that a data science approach is crucial for HR in large organizations, going beyond traditional recruitment tasks. By leveraging social network analysis, sentiment analysis, and predictive modeling, HR can enhance communication, strengthen company culture, improve employee retention, and ensure fair compensation. The article explores how these data-driven insights help identify key influencers, predict attrition, and address hidden issues, ultimately building a more resilient organization. The choice between an in-house data scientist and an external consultant depends on the organization's specific needs.

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(gorelik.net)
AI Organizational Management
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