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Right-Nulled GLR Parsing: Gracefully Handling Context-Free Grammars

2025-01-15

This article delves into Generalized LR (GLR) parsing and its improvement, Right-Nulled GLR (RNGLR) parsing. GLR parsing can handle any context-free grammar without restrictions, making it a useful prototyping tool. However, traditional GLR parsing suffers from efficiency issues when dealing with hidden left and right recursion. RNGLR parsing elegantly addresses these issues by cleverly handling right-nulled rules, improving parsing efficiency. The article explains the principles of RNGLR parsing and demonstrates its advantages in handling conflicts and constructing Shared Packed Parse Forests (SPPFs) through examples.

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(blog.jeffsmits.net)
Development GLR parsing context-free grammar compiler theory

SAP's €20B Bet: A Sovereign Cloud to Challenge US Giants in Europe

2025-09-05
SAP's €20B Bet: A Sovereign Cloud to Challenge US Giants in Europe

SAP is investing €20 billion over the next decade to expand its sovereign cloud infrastructure in Europe, positioning itself as a secure and compliant alternative to American cloud giants. This initiative focuses on providing sovereign infrastructure for public sector and regulated environments, offering three options: SAP Cloud Infrastructure (IaaS), Sovereign Cloud On-Site, and Delos Cloud in Germany. While the CEO previously cautioned against directly competing with US hyperscalers in infrastructure, this investment prioritizes integrating sovereignty into the technology stack, not replicating global infrastructure. The strategy emphasizes boosting Europe's competitiveness through software, AI, and applied innovation.

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(www.theregister.com)
Tech sovereign cloud

FreeDOS 1.4 Released: Stability Update for Legacy DOS PCs

2025-04-13
FreeDOS 1.4 Released: Stability Update for Legacy DOS PCs

FreeDOS, the open-source DOS successor, has released version 1.4, focusing on stability improvements. The update includes a revamped installer, updated versions of essential tools like fdisk and format, and an updated edlin text editor. A 'Floppy-Only Edition' caters to vintage systems, while a 'BonusCD' offers additional tools and the OpenGEM graphical interface.

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(arstechnica.com)
Development

Coroot: Actionable Observability Without Code Changes

2025-04-08
Coroot: Actionable Observability Without Code Changes

Coroot is an open-source observability platform that automatically gathers metrics, logs, and traces without requiring any code modifications, turning this data into actionable insights. Leveraging eBPF for zero-instrumentation monitoring, it provides a service map, predefined inspections, application health summaries, distributed tracing, log analysis, and profiling capabilities. Coroot quickly identifies and resolves application issues, integrates with Kubernetes and major cloud platforms, and offers SLO tracking and cost monitoring to help developers optimize application performance and reduce cloud costs.

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(github.com)
Development

FPGA Forth Interpreter CPU using an LFSR

2025-06-02
FPGA Forth Interpreter CPU using an LFSR

This project details an FPGA CPU implemented in VHDL that utilizes a Linear Feedback Shift Register (LFSR) instead of a program counter. This approach, while traditionally space-saving, offers minimal benefits on FPGAs. The CPU, running a fully functional Forth interpreter, achieves 151.768MHz on a Spartan-6 FPGA. Remarkably compact, the core consumes only 27 slices. The project includes VHDL code, GHDL simulation instructions, and build instructions for Xilinx ISE 14.7. It showcases the potential of LFSRs for resource-constrained designs and presents a highly efficient Forth interpreter implementation.

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(github.com)
Hardware

myNoise Android App Launch: A Year of Struggle and Triumph

2025-07-06
myNoise Android App Launch: A Year of Struggle and Triumph

After a year-long development odyssey, the new myNoise Android app is finally live. This post details the challenges of Android development: device fragmentation, the app store's pay-to-play model, and high maintenance costs. The author recounts the journey from initial iOS success to the Android app's rebuild, highlighting the team's contributions. Despite negative reviews and financial strain, the author remains optimistic and appeals for user support to ensure the project's success.

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(mynoise.net)
Development

World's Largest Wildlife Crossing Nears Completion

2025-06-22
World's Largest Wildlife Crossing Nears Completion

Three years in the making, the Wallis Annenberg Wildlife Crossing, the world's largest wildlife overpass, is nearing completion. Located in Agoura Hills, California, this nearly one-acre bridge spans a 10-lane section of US 101, aiming to reconnect the bisected Santa Monica Mountains National Recreation Area. The bridge structure is finished, and crews are now adding 6,000 cubic yards of specialized soil and planting 5,000 native plants to create a thriving wildlife habitat. This project is crucial for protecting mountain lions and other animals from highway collisions, enhancing their habitat connectivity, and ensuring their long-term survival.

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(www.thedrive.com)
Tech

New Short Message Compression Tool: ts_sms

2024-12-30

ts_sms is a new tool for short message compression using large language models. It employs lossless compression, reducing bits by identifying and eliminating statistical redundancy without information loss. Compared to tools like brotli, ts_sms shows advantages in compressing small messages. Both Linux and Windows versions are available. Its core technology is similar to ts_zip, utilizing a specific padding system compatible with arithmetic coding, eliminating the need to explicitly encode message length.

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(bellard.org)
Development

Sampling Big Data: Small Samples, Big Answers

2025-05-31
Sampling Big Data: Small Samples, Big Answers

Hadley Wickham's recent interview highlighted that many big data problems are actually small data problems, given the right subset, sample, or summary. This post delves into efficient sampling for big data analysis. Using the example of Goatly, a company serving narcoleptic goats, the author demonstrates how to calculate the appropriate sample size for logistic regression. The conclusion is that approximately 2345 samples are needed to accurately represent 100,000 farms. The post also details Python scripts and online tools for sample size calculation, and briefly touches on the concept of statistical power.

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(vickiboykis.com)
Development data sampling big data analysis sample size calculation

Republicans' Cruel Budget: Tax Cuts for the Rich, Cuts for the Poor

2025-05-19
Republicans' Cruel Budget: Tax Cuts for the Rich, Cuts for the Poor

Republicans in Congress are pushing a deeply regressive budget, delivering massive tax cuts to the wealthy while cruelly slashing programs serving lower-income Americans. This bill is exceptionally cruel, relying on demonstrably false claims and failed policies—what some call 'zombie ideas'. For example, it would slash Medicaid by requiring adult recipients to be employed, ignoring the reality that most recipients are children, seniors, or disabled. This isn't just about finances; it's a malicious attack on the vulnerable, revealing a lack of compassion and an abuse of power by the Republican party.

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(paulkrugman.substack.com)
Misc Budget Social Welfare

OpenAI Delays GPT-4.5 Rollout Due to GPU Shortage

2025-02-28
OpenAI Delays GPT-4.5 Rollout Due to GPU Shortage

OpenAI CEO Sam Altman announced that the rollout of the company's newest model, GPT-4.5, has been delayed due to a shortage of GPUs. Altman described the model as "giant" and "expensive," requiring "tens of thousands" more GPUs before wider access can be granted. GPT-4.5 will initially be available to ChatGPT Pro subscribers starting Thursday, followed by ChatGPT Plus users next week. The model's immense size contributes to its high cost: $75 per million input tokens and $150 per million output tokens, significantly more expensive than GPT-4. Altman attributed the GPU shortage to OpenAI's rapid growth, promising to add tens of thousands of GPUs next week to expand access. OpenAI plans to address future computing capacity limitations by developing its own AI chips and building a large network of data centers.

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(techcrunch.com)
AI GPU shortage

Never Suspend a Thread in Your Own Process!

2025-04-15
Never Suspend a Thread in Your Own Process!

A customer encountered a long-standing, low-frequency hang: their UI thread called into the kernel and simply hung. The kernel dump couldn't show a user-mode stack trace because the stack had been paged out. Investigation revealed a watchdog thread periodically suspending the UI thread to capture stack traces, but this time it hung for over five hours. The root cause: a deadlock. The watchdog thread, attempting to get a stack trace, needed a function table lock, but the UI thread was suspended, holding the lock. The article emphasizes never suspending a thread within its own process, as it risks deadlocks due to resource contention. To suspend a thread and capture its stack, do so from another process to avoid deadlocks.

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(devblogs.microsoft.com)
Development thread suspension deadlock

DeepSeek Opensources 5 AGI Repos: A Humble Beginning

2025-02-21
DeepSeek Opensources 5 AGI Repos: A Humble Beginning

DeepSeek AI, a small team pushing the boundaries of AGI, announces it will open-source five repositories over the next week, one per day. These aren't vaporware; they're battle-tested production-ready building blocks of their online service. This open-source initiative aims to foster collaborative progress and accelerate the journey towards AGI. Accompanying this release are two research papers: a 2024 AI Infrastructure paper (SC24) and a paper on Fire-Flyer AI-HPC, a cost-effective software-hardware co-design for deep learning.

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(github.com)
AI AI Infrastructure

Agent Experience (AX): Designing for the Rise of AI Agents

2025-02-07
Agent Experience (AX): Designing for the Rise of AI Agents

AI agents like ChatGPT are revolutionizing how we interact with apps. This article argues that we need to shift from focusing solely on User Experience (UX) to Agent Experience (AX), emphasizing secure, transparent, and user-consented machine access to data and actions. OAuth is presented as the key to secure, controlled agent access, offering granular permissions and revocation. Key elements for great AX include clean APIs, easy onboarding, frictionless agent operations, and tiered authentication. The article concludes by advocating for all apps to become OAuth providers, building an open AX ecosystem for a competitive advantage.

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(stytch.com)
AI AI Agents Agent Experience

DIY Birkeland-Eyde Reactor: An Arduino-Powered Experiment

2025-04-09
DIY Birkeland-Eyde Reactor: An Arduino-Powered Experiment

Citizen scientist Marb built a DIY experimental reactor to demonstrate the Birkeland-Eyde process, a historically significant but inefficient method of producing nitric acid from atmospheric nitrogen using electric arcs. While energy-intensive and largely obsolete for industrial use, Marb's focus is on the scientific experiment. He cleverly uses an Arduino UNO to control the electric arc, incorporating a desiccant dryer for optimal air conditions and a temperature sensor for feedback. Though the current yield is low, Marb plans a follow-up video with more details if there's sufficient interest.

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(blog.arduino.cc)
Tech Birkeland-Eyde process Nitrogen fertilizer

Florida's Elderly Face Medicaid Cuts: A Looming Crisis

2025-03-16
Florida's Elderly Face Medicaid Cuts: A Looming Crisis

Proposed spending cuts in Washington, D.C., threaten Florida's nursing home residents who heavily rely on Medicaid for care. Medicaid is the primary payer for nursing home care in Florida, crucial for two-thirds of residents to afford daily assistance. Potential cuts could lead to nursing home closures, job losses for caregivers, and increased burdens on families. The average annual cost of nursing home care in Florida is between $104,000 and $117,000, making Medicaid essential for most. The uncertainty surrounding the extent of these cuts has Florida's elder-care advocates deeply concerned about the future of senior care in the state.

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(www.tampabay.com)
Misc Medicaid cuts Elder care Nursing homes

YouTube's Homepage: From 30 Videos to Near-Zero

2025-04-30

Comparing YouTube's homepage in 2019 to the current version, the author notes a drastic increase in ads and a significant decrease in visible videos. While 30 videos were previously displayed, now only five are shown, with a massive ad taking up a sixth of the page. The author predicts that by May 2026, only one video will remain, and by September, there will be none. They lament YouTube's prioritization of profit over user experience, humorously suggesting that future ads might be directly injected into our brains via Neuralink.

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(jayd.ml)
Misc

HyperDX: Blazing-Fast Log and Trace Visualization on ClickHouse

2025-06-05
HyperDX: Blazing-Fast Log and Trace Visualization on ClickHouse

HyperDX, a core component of ClickStack, empowers engineers to rapidly diagnose production issues. It provides lightning-fast search and visualization of logs and traces atop any ClickHouse cluster (think Kibana, but for ClickHouse). Offering intuitive full-text and property searching, anomaly trend analysis, alerting, and performance monitoring from HTTP requests to database queries, HyperDX integrates seamlessly with OpenTelemetry and supports numerous languages and platforms. Deployable via Docker or ClickHouse Cloud, HyperDX aims to simplify production telemetry analysis, addressing the cost, usability, and tool-hopping limitations of existing solutions. It's designed to make production observability accessible to all engineers.

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(github.com)
Development Log Visualization

Global Fertility Crash: Worse Than the UN Predicted

2025-07-10
Global Fertility Crash: Worse Than the UN Predicted

The UN's projections on global population growth are overly optimistic; the actual decline in fertility rates is far steeper than anticipated. Many countries, including some middle-income nations, have fertility rates far below those of wealthy countries, defying the traditional modernization narrative. For example, Colombia's 2024 birth rate was only 445,000, significantly lower than the UN's prediction. This downward trend poses a severe threat to economic growth and retirement prospects as fewer young people support a growing elderly population. Japan serves as a cautionary tale, its low fertility leading to slowed economic growth. If the global fertility rate continues to fall, the world economy faces immense challenges.

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(www.theatlantic.com)
Misc

Why I Gave Up on GenAI Criticism

2025-06-05

The author, a self-described "thinky programmer," has long been skeptical of generative AI. Drowning in the constant discourse, he attempts to logically frame his concerns, but ultimately fails. The article delves into his negative experiences with genAI, encompassing its aesthetic flaws, productivity issues, ethical concerns, energy consumption, impact on education, and privacy violations. Despite presenting numerous arguments, he admits he can't rigorously refute pro-AI proponents. He ultimately surrenders, recognizing the prohibitive cost and futility of combating the immense influence of generative AI.

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(blog.glyph.im)
AI Tech Criticism

Calypsi: A Cross-Platform Compiler Toolchain for Retro and Embedded Programming

2025-04-20
Calypsi: A Cross-Platform Compiler Toolchain for Retro and Embedded Programming

Calypsi is a series of C compiler and assembly language cross-compiler toolchains targeting the retro and hobbyist communities. The current release (5.10) supports MOS 6502, WDC 65816, Motorola 68000, and HP Nut (assembler and debugger only) targets, running on various Linux distributions, macOS, and Windows. Features include ISO C 99 compliance, a fully reentrant code model, support for various data types, optimizing compilation, and a source code debugger. The toolchain is closed-source but free for hobby use; the HP-41 Nut target uses a BSD license, allowing commercial use.

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(github.com)
Development

Do LLMs Understand Nulls? Probing the Internal Representations of Code-Generating Models

2025-04-07

Large language models (LLMs) have shown remarkable progress in code generation, but their true understanding of code remains a question. This work investigates LLMs' comprehension of nullability in code, employing both external evaluation (code completion) and internal probing (model activation analysis). Results reveal LLMs learn and apply rules about null values, with performance varying based on rule complexity and model size. The study also illuminates how LLMs internally represent nullability and how this understanding evolves during training.

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(dmodel.ai)
AI Nullability

Genie 3: A Deep Dive into the Acknowledgments

2025-08-06
Genie 3: A Deep Dive into the Acknowledgments

The success of the large language model Genie 3 is attributed to the significant contributions of numerous researchers and engineers. This extensive acknowledgment list highlights the collaborative effort across various stages, from core development to video production. It underscores the immense teamwork and support network crucial for such a complex AI project.

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(deepmind.google)
AI

Andor's Cinematographer Christophe Nuyens: From Film to Digital and Beyond

2025-06-01

This interview features Christophe Nuyens, cinematographer for the second season of Andor. Nuyens discusses his journey from electrician to cinematographer, his perspective on the shift from film to digital filmmaking, and how he achieved high-quality episodic production on a budget. He details the visual bridge between Andor season one and Rogue One, his passion for technology, collaboration with VFX, and experiences filming across diverse cultural settings.

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(www.pushing-pixels.org)
Tech Cinematography Digital Filmmaking

Single-Header C++ Profiler: utl::profiler

2025-04-14
Single-Header C++ Profiler: utl::profiler

utl::profiler is a single-header C++ profiling library that uses simple macros to measure the execution time of code segments and automatically builds a call graph. The library boasts features like customizable style options, thread safety, and support for detached threads. It significantly reduces overhead by using x86 intrinsics. The library also supports custom styling and exporting results to a file.

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(github.com)
Development Single-Header Library

TikTok Ban: Can Uncle Sam Stop the ByteDance Beat?

2025-01-11
TikTok Ban: Can Uncle Sam Stop the ByteDance Beat?

The Supreme Court is considering a law that could ban TikTok in the US. However, experts question whether a ban would be effective, citing the law's vagueness and the ease with which users could circumvent it using VPNs, pre-downloaded apps, or alternative download methods. The law doesn't mandate internet providers to block TikTok access or users to delete the app. While Apple and Google app stores would be required to remove TikTok, determined users could still find ways to access the platform, highlighting the challenges of enforcing a nationwide ban on an internet-based service.

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(www.yahoo.com)
Tech US Ban Legal Loopholes

Gemini 2.5 Pro: The New King of Code Generation?

2025-03-31
Gemini 2.5 Pro: The New King of Code Generation?

Google's Gemini 2.5 Pro, launched on March 26th, claims coding, reasoning, and overall superiority. This article focuses on a head-to-head comparison with Claude 3.7 Sonnet, another top coding model. Through four coding challenges, Gemini 2.5 Pro demonstrated significant advantages in accuracy and efficiency, especially with its million-token context window enabling complex task handling. While Claude 3.7 Sonnet performed well, it paled in direct comparison. Gemini 2.5 Pro's free access further enhances its appeal.

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(composio.dev)
AI

Turning Quantum Noise into a Strength: Diamond Sensors Revolutionize Industries

2025-02-27
Turning Quantum Noise into a Strength: Diamond Sensors Revolutionize Industries

Quantum Catalyzer (Q-Cat) is leveraging quantum defects in diamonds to create sensors that turn the biggest hurdle for quantum computers—noise—into an advantage. These sensors utilize environmental disturbances to detect minute changes in magnetic and electric fields, finding applications in diverse sectors. Their first spin-off, EuQlid, developed a quantum diamond microscope imaging magnetic fields with micron-scale resolution, offering non-invasive high-precision analysis for semiconductor current detection, artwork preservation, and even biomedical applications like tumor detection. This technology promises to revolutionize various industries.

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(spectrum.ieee.org)
Tech Quantum Sensors Diamond Defects
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