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Challenge Your Brain: Connect the Dots Without Crossing Lines

2024-12-31
Challenge Your Brain: Connect the Dots Without Crossing Lines

This is a brain-teasing puzzle game that tests your spatial reasoning skills - connect the dots without crossing lines. The goal is to connect all the dots without any lines intersecting. It seems simple, but it involves complex logic, requiring players to carefully consider and plan their routes to successfully complete the challenge. The difficulty gradually increases, testing your patience and strategy. Suitable for players of all ages to enjoy the fun of puzzle-solving.

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(vidzert.com)
Game puzzle game brain teaser spatial reasoning

GUARDIAN: AI-Powered Tsunami Early Warning System

2025-09-15
GUARDIAN: AI-Powered Tsunami Early Warning System

NASA's Jet Propulsion Laboratory has developed GUARDIAN, an AI-powered system that uses data from over 350 continuously operating GNSS ground stations worldwide to provide early warnings for tsunamis. By identifying atmospheric distortions caused by tsunamis, GUARDIAN can, in ideal scenarios, give coastal communities up to 1 hour and 20 minutes of warning time, saving lives and property. GUARDIAN's advantage lies in its ability to detect tsunamis regardless of their cause, alerting authorities to dangerous waves generated by earthquakes, volcanic eruptions, landslides, or other events.

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(www.jpl.nasa.gov)
AI Tsunami Warning

Paris Fights Heatwaves with Innovative River-Based Cooling

2025-09-06
Paris Fights Heatwaves with Innovative River-Based Cooling

Facing increasingly severe summer heat waves, Paris is aggressively developing an innovative system that uses the Seine River water to cool buildings. This system transfers heat from buildings to the river water through heat exchangers, maintaining high cooling efficiency even when the river water is warm in summer, reaching up to 15 times the efficiency of conventional air conditioning in winter. However, with rising summer temperatures, the system faces new challenges. How to further improve cooling capacity while protecting the environment has become a crucial issue for Paris to address.

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(www.wired.com)
Tech urban cooling

LCP eBook DRM: A Cautiously Optimistic Assessment

2025-05-09
LCP eBook DRM: A Cautiously Optimistic Assessment

Readium's LCP eBook DRM scheme allows offline reading after download, eliminating the need for constant online verification. It uses AES-256 encryption and is authorized via an .lcpl file containing decryption information. While the scheme relies on a proprietary decryption BLOB, its open ePub format and multi-reader support make it relatively secure and allow for offline backups. However, the bookseller can track reading devices and times, and forgotten passwords are unrecoverable. Furthermore, the long-term compatibility and security of the BLOB are questionable, and the risk of cracking remains. In short, LCP represents a relatively benign attempt at DRM, but its long-term security and level of user control require cautious assessment.

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(shkspr.mobi)
Tech

LegoGPT: Building Stable LEGO Models from Text Prompts

2025-05-09

Researchers have developed LegoGPT, an AI model that generates physically stable LEGO brick models from text prompts. Trained on a massive dataset of over 47,000 LEGO structures encompassing over 28,000 unique 3D objects and detailed captions, LegoGPT predicts the next brick to add using next-token prediction. To ensure stability, it incorporates an efficient validity check and physics-aware rollback during inference. Experiments show LegoGPT produces stable, diverse, and aesthetically pleasing LEGO designs closely aligned with the input text. A text-based texturing method generates colored and textured designs. The models can be assembled manually or by robotic arms. The dataset, code, and models are publicly released.

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(avalovelace1.github.io)
AI Generative Model

Say Goodbye to Calendar Apps: Manage Your Time with a Plain Text File

2025-02-28

Tired of complex calendar apps? Try Calendar.txt! This system uses a plain text file to manage your schedule, works on all operating systems, and syncs easily with Android. It uses a simple YYYY-MM-DD wWW format for events, supports weekly, monthly, and yearly goals, and allows for quick searches using grep. Calendar.txt is lightweight, efficient, easily backed up, and ideal for those seeking productivity.

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(terokarvinen.com)
Misc plain text scheduling

First Whole-Brain Map of Decision-Making in Mammals Achieved

2025-09-05
First Whole-Brain Map of Decision-Making in Mammals Achieved

The International Brain Laboratory (IBL) has created the first whole-brain map of decision-making in mammals, a groundbreaking achievement in neuroscience. Researchers trained mice to manipulate a virtual steering wheel to move shapes on a screen, simultaneously recording the activity of over 600,000 neurons across 279 brain regions in 139 mice. The results reveal that decision-making is not confined to specific brain regions, but is distributed throughout the entire brain, including areas previously thought to be solely involved in movement. This research provides a valuable data resource for understanding the brain's complex workings and demonstrates the potential of large-scale international collaborations in neuroscience.

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(www.eurekalert.org)
Tech Whole-Brain Mapping

Type-Safe Error Handling in Swift 6: A Layered Approach

2025-09-05

Swift 6 introduces typed throws, making error handling more type-safe. This post details a user-friendly layered error model using a custom `SystemError` protocol. This protocol includes properties like `logMessage`, `userFriendlyMessage`, and `underlyingErrors`, and provides recursive functions for looking up error types and generating error stacks. The article demonstrates defining custom error objects using structs and enums, handling Foundation errors, and decoding errors. Examples showcase leveraging typed throws and custom error handling to improve the reliability of Swift projects.

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(theswiftdev.com)
Development

Diligent: Hiring Founding AI Engineer to Revolutionize Fintech Risk

2025-05-27
Diligent: Hiring Founding AI Engineer to Revolutionize Fintech Risk

Diligent, a Y Combinator startup, uses AI to automate due diligence for fintechs and banks. They're seeking a Founding AI Engineer to build core agent frameworks, innovate LLM applications in financial services, and directly collaborate with clients. The ideal candidate is a problem-solver with strong coding, system design, and architecture skills, and a passion for language models. Competitive salary, equity, and a fast-paced environment are offered.

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(www.ycombinator.com)
AI

Possible New Moon Discovered Orbiting Distant Dwarf Planet Quaoar

2025-09-13
Possible New Moon Discovered Orbiting Distant Dwarf Planet Quaoar

Astronomers have unexpectedly discovered a possible new celestial body orbiting the distant Kuiper Belt dwarf planet Quaoar. This icy, egg-shaped dwarf planet beyond Neptune is already known to possess two rings and a moon. The discovery stemmed from a stellar occultation event, revealing an extra 1.23-second blockage of starlight, suggesting a new satellite or a third ring. James Webb Space Telescope data lends credence to the satellite hypothesis. This finding adds to the mystery surrounding Quaoar, challenges our understanding of ring and moon formation, and offers new insights into planetary system formation in the distant reaches of the Milky Way.

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(phys.org)
Tech Kuiper Belt moon

Revolutionizing Embedded CPUs: Efficient Computer's Electron E1

2025-07-25
Revolutionizing Embedded CPUs: Efficient Computer's Electron E1

Efficient Computer is challenging decades of conventional CPU design with its Electron E1 chip, a 'clean sheet' processor for the embedded market. This chip employs static scheduling and data flow control, eliminating caches and out-of-order execution, resulting in claimed energy efficiency improvements of up to 100x over leading ARM cores. Its unique spatial data flow architecture, coupled with a smart compiler supporting C++ and Rust, aims for general-purpose capabilities while also targeting machine learning frameworks like PyTorch. While challenges remain regarding compiler maturity and market adoption, the Electron E1 represents a potentially groundbreaking advancement for power-constrained embedded systems in areas such as aerospace, defense, and wearables.

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(morethanmoore.substack.com)
Hardware embedded chip static scheduling

Reverse Engineering the Commodore 64 Freezer Cartridge: A Deep Dive

2025-06-14

This article delves into the reverse engineering of Commodore 64 freezer cartridges, such as the Final Cartridge III. These cartridges leverage the C64's Ultimax mode and NMI interrupts to achieve functionalities like freezing programs, applying cheat codes, and saving game states. The article meticulously explains the technical challenges of the freezing process, such as coordinating 6502 CPU instruction cycles with Ultimax mode activation, and how limited memory resources are utilized for displaying menus and managing state backups. The author also analyzes the cartridge's backup mechanisms and game trainer functionality, praising the developers' deep understanding of the C64 hardware and their masterful coding skills.

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(www.pagetable.com)
Hardware Freezer Cartridge

Depot Registry: A Faster, More Powerful Docker Registry is Here

2025-03-05
Depot Registry: A Faster, More Powerful Docker Registry is Here

Depot has launched Depot Registry, a faster and more powerful Docker registry. Built upon learnings from their internal ephemeral registry, it offers a globally distributed architecture seamlessly integrating with Depot builds. Key improvements include enhanced performance via Tigris' global content delivery and S3 integration; a new registry dashboard for image management; customizable image retention policies; and automatic integration with Depot GitHub Actions runners, simplifying authentication. Depot Registry is now generally available, included in all plans with storage charges only.

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(depot.dev)
Development

12 Projects in Months: My Claude Code Workflow

2025-08-09
12 Projects in Months: My Claude Code Workflow

This post details the author's experience using Claude Code, an LLM programming agent, to complete 12 projects in a few months. The author emphasizes the importance of clear specifications, code review (including having the agent review its own work), and a personal 'global' agent guide outlining best practices like incremental progress and test-driven development. Manual code review and thorough testing are highlighted as crucial, regardless of AI assistance. A list of completed projects on GitHub is provided.

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(www.dzombak.com)
Development programming agent

Google's Privacy U-Turn: Digital Fingerprinting Returns

2025-01-12
Google's Privacy U-Turn: Digital Fingerprinting Returns

Google has reinstated digital fingerprinting for advertising purposes, raising privacy concerns. This technology tracks users across devices by collecting online signals (IP addresses, browser information, etc.), circumventing user control over cookies. While Google claims to employ privacy-enhancing technologies, the UK's Information Commissioner's Office labeled the move "irresponsible," citing reduced user control and potential risks to advertiser behavior. This contradicts Google's previous privacy pledges and reignites debate about data collection and user choice.

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(mashable.com)
Tech Digital Fingerprinting

Real-Time Chunking for Vision-Language-Action Models

2025-06-17

This paper introduces Real-Time Chunking (RTC), an algorithm addressing the real-time execution challenge of Vision-Language-Action (VLA) models in robotics. Traditional VLAs are slow and prone to discontinuities when switching between action chunks, leading to unstable robot behavior. RTC solves this by dividing actions into chunks and generating the next chunk while executing the previous one, achieving real-time performance and eliminating discontinuities. Experiments demonstrate RTC significantly improves execution speed and accuracy, maintaining robust performance even under high latency. This research paves the way for building robots capable of real-time complex task handling.

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(www.pi.website)
AI Robotics Control Real-time Execution Vision-Language-Action Models

Anxious Parents and AI-Powered Kid Phones: A Balancing Act Between Safety and Freedom

2025-05-17
Anxious Parents and AI-Powered Kid Phones: A Balancing Act Between Safety and Freedom

The ubiquity of smartphones has left parents grappling with the benefits of technology and the concerns about its impact on their children's mental health. This article describes an "alternative device fair" held in Westport, Connecticut, showcasing phones with intentionally limited functionality and advanced parental controls and AI-powered content moderation systems designed to protect children from online abuse, pornography, and harmful content. However, these phones also raise concerns about privacy, over-monitoring, and the reliability of AI technology. Parents struggle to balance safety with their children's freedom, seeking a compromise that protects their kids while still allowing them to enjoy the benefits of technology.

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(www.theatlantic.com)
Tech kids' phones

Blast from the Past: A Catalog of 80s BASIC Games

2025-04-22
Blast from the Past: A Catalog of 80s BASIC Games

This article presents a fascinating list of BASIC games from the 1980s, spanning various computer systems like BASIC-PLUS, EduSystem, DECsystem 10, and HP. From simple number guessing games (Acey-Ducey, Bagles) to complex strategy games (Gomoko, Civil War) and simulations (HMRABI, KING), the variety showcases the creativity and ingenuity of programming during that era. These games, simple yet engaging, are sure to evoke nostalgia in many.

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(github.com)
Game BASIC programming 80s games

The Game Genie's Legacy: From NES Cheat Codes to AI Copyright Cases

2025-07-22
The Game Genie's Legacy: From NES Cheat Codes to AI Copyright Cases

This article revisits the Game Genie, a popular NES accessory from the early 1990s that allowed players to modify game data. Despite Nintendo suing Galoob, the Game Genie's distributor, the courts ultimately ruled in favor of fair use. This precedent was recently cited in a landmark case involving AI company Anthropic, highlighting its enduring significance in copyright law. The Game Genie not only transformed gaming but also foreshadowed today's remix culture and open approach to technology.

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(tedium.co)
Game

Meta's Smart Glasses Demo Disaster: A Self-Inflicted DDoS and a Nasty Bug

2025-09-21
Meta's Smart Glasses Demo Disaster: A Self-Inflicted DDoS and a Nasty Bug

Meta's new smart glasses suffered multiple demo failures at Meta Connect. CTO Andrew Bosworth explained it wasn't Wi-Fi, but a resource management miscalculation that triggered all Ray-Ban Meta glasses to simultaneously start their AI, creating a self-inflicted DDoS attack on the dev server. A separate WhatsApp video call failure stemmed from a new 'race condition' bug causing the display to miss the incoming call notification. Despite the demo failures, Bosworth remains confident in the product.

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(techcrunch.com)
Tech

Slashing R&D Funding: A Macroeconomic Disaster

2025-04-30

A new analysis reveals the devastating long-term economic consequences of cutting federal funding for scientific R&D. Reducing public R&D spending by 25% would shrink GDP comparably to the Great Recession. Halving it would impoverish the average American by roughly $10,000 (in today's dollars). Furthermore, such cuts would significantly reduce federal revenue; a 25% reduction leading to a 4.3% annual decrease, and a 50% cut resulting in an 8.6% annual decline. Agencies like NIH and NSF, crucial for funding basic and applied research, face funding freezes and downsizing, highlighting the urgent need to address this issue.

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(impa.american.edu)
Tech R&D funding

Nine Zero-Days in HashiCorp Vault: The Trust Model Broken

2025-08-07
Nine Zero-Days in HashiCorp Vault: The Trust Model Broken

Cyata's research team uncovered nine previously unknown zero-day vulnerabilities in HashiCorp Vault, bypassing lockouts, evading policy checks, and enabling impersonation. One vulnerability allows root privilege escalation, and another—perhaps most concerning—leads to the first publicly reported remote code execution (RCE) in Vault, enabling complete system takeover. These flaws weren't memory corruption or race conditions, but subtle logic flaws buried in Vault's authentication, identity, and policy enforcement layers; some existed for nearly a decade. Researchers found them by meticulously examining Vault's core request flow, specifically the request_handling.go file. These vulnerabilities impact both open-source and enterprise Vault versions, allowing attackers to bypass multi-factor authentication (MFA), impersonate entities, and achieve RCE. The research highlights the potential impact of subtle logic flaws in software critical to infrastructure security.

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(cyata.ai)
Tech

EU Mandates More Durable, Repairable Smartphones and Tablets

2025-06-23
EU Mandates More Durable, Repairable Smartphones and Tablets

New EU ecodesign and energy labelling rules for smartphones, cordless phones, and tablets came into effect today. These regulations aim to extend product lifespans, improve energy efficiency, and enhance repairability, guiding consumers towards more sustainable choices. By 2030, the rules are projected to save EU citizens 2.2 TWh of electricity, representing a third of current consumption and €20 billion in consumer spending. The regulations mandate increased durability (resistance to drops, scratches, dust, and water), longer-lasting batteries (800 charge cycles, 80% capacity retention), readily available spare parts, and at least 5 years of OS updates. A repairability score (A-E) will also be displayed, aiding consumer decision-making. These measures support the circular economy and reduce environmental impact.

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(single-market-economy.ec.europa.eu)
Tech smartphone sustainability electronics recycling

Recursive Descent Parsers: Simple Wins Over Complexity?

2025-07-28

The author explores approaches to parsing computer languages, specifically comparing recursive descent parsers to LR parser generators. While LR parser generators handle more complex grammars, the author favors recursive descent parsers due to their ease of use, lack of reliance on external tools, and ability to be written directly in the target language, thus minimizing learning curve and debugging challenges. For developers who occasionally need to build parsers for small languages, the simplicity and ease of use of recursive descent parsers outweigh their limitations in handling complex grammars.

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(utcc.utoronto.ca)
Development parsers recursive descent

Rejoy Health: Hiring Software Engineers for AI-Powered Medical Search

2025-07-17
Rejoy Health: Hiring Software Engineers for AI-Powered Medical Search

Rejoy Health, an AI-powered medical search platform for clinicians, is hiring Software Engineers. Responsibilities include building and scaling backend systems for their AI search engine, developing APIs and services for their web app, collaborating with ML engineers on NLP/LLM model integration, and designing performant and secure infrastructure. Requirements include 1+ years of software engineering experience (Python, React.js preferred), strong backend development skills, experience with cloud platforms (AWS, GCP, or Azure), and DevOps familiarity.

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(www.ycombinator.com)
Development

Mastering the Core Math of Machine Learning: From Bayes to Attention

2025-08-28

This blog post provides a comprehensive guide to the most crucial mathematical equations in machine learning, covering probability, linear algebra, and optimization. It explains concepts like Bayes' Theorem, entropy, gradient descent, and backpropagation with clear explanations and Python code examples. Furthermore, it delves into advanced topics such as diffusion processes and the attention mechanism, providing practical implementations. This is an invaluable resource for anyone seeking to understand the core mathematical foundations of machine learning.

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(chizkidd.github.io)
AI math equations

Copyright Notice: The Enigmatic Art of Alexander Popov

2025-06-15
Copyright Notice: The Enigmatic Art of Alexander Popov

This document compiles information on artist Alexander Popov from academic journals, art criticism, interviews, exhibition catalogs, and firsthand accounts. Because Popov has historically resisted definitive documentation of his work, this timeline doesn't definitively capture experiences designed to resist fixed interpretation. This resource is for educational and research purposes only. Void Enterprises holds exclusive rights to all of Alexander Popov's artistic works and intellectual property. Unauthorized recreation, modification, or extension of Popov's installations is strongly discouraged and may result in legal action.

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(strangemachine.tv)
Art Alexander Popov

OMG! Nearly All Binary Searches and Mergesorts Are Broken

2025-01-11
OMG! Nearly All Binary Searches and Mergesorts Are Broken

Google software engineer Joshua Bloch revealed a nearly two-decade-old bug lurking in binary search algorithms, found in both the JDK and Jon Bentley's 'Programming Pearls'! The bug stems from the line `int mid = (low + high) / 2;`, causing integer overflow and array index out-of-bounds exceptions when the sum of `low` and `high` exceeds the maximum positive integer value. This bug only manifests with massive datasets, making it particularly dangerous in today's big data world. The article explores various fixes and emphasizes that bugs can persist even with rigorous testing and proofs, urging programmers to remain cautious and humble.

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(research.google)
Development algorithm bug binary search mergesort

Why I Previously Overlooked Parallelisation: A Retrospective on Multithreaded Programming

2025-04-05

The author revisits a previous post, admitting to overlooking parallelisation as a crucial optimisation technique. Using his website rebuild as a case study, he demonstrates the significant performance gains achieved through parallelisation. The article delves into the challenges of parallel programming, including hardware and software limitations, and the complexities of synchronization in multithreaded environments. The author shares his experiences with multithreaded programming in Rust, highlighting how Rust's features make multithreading safer, more reliable, and more efficient. Ultimately, the author advocates for developers to embrace parallelisation as a powerful tool for improving software performance.

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(tratt.net)
Development parallelisation multithreaded programming
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