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Algorithm Nightmare: An O(EV+VlogVlogK) Solution for Counting Paths of Length K

2025-08-25

This article tackles a seemingly simple algorithmic problem: finding the number of paths of length K between nodes A and B in a directed, unweighted graph. Starting with basic BFS and dynamic programming, the author delves into more advanced techniques, including matrix exponentiation, linear recurrences, generating functions, annihilating polynomials, and the Berlekamp-Massey algorithm. The result is a stunning O(EV+VlogVlogK) solution, significantly faster than traditional O(EK) or O(V³logK) approaches. The author clearly explains the principles and connections between these algorithms, highlighting the problem's complexity and the elegance of the solution.

(horace.io)

Development linear recurrences

ChatGPT Use Linked to Increased Loneliness: OpenAI, MIT Study

2025-03-21

ChatGPT Use Linked to Increased Loneliness: OpenAI, MIT Study

New research from OpenAI and MIT suggests increased use of chatbots like ChatGPT may correlate with higher loneliness and less social interaction. A study following nearly 1,000 users for a month found that those spending more time with ChatGPT reported greater emotional dependence and loneliness. While few used ChatGPT for emotional support, the study indicated that individuals predisposed to emotional dependence might experience exacerbated loneliness. Researchers emphasize the need for further research into AI's impact on human well-being and responsible AI design.

(finance.yahoo.com)

AI

mbake: A Makefile Formatter and Linter After 50 Years!

2025-06-22

mbake: A Makefile Formatter and Linter After 50 Years!

After a 50-year wait (referencing the long history of Makefiles), mbake is finally here! This Makefile formatter and linter not only automatically fixes formatting issues such as indentation, spacing, and line breaks but also intelligently detects `.PHONY` targets and supports custom rules and plugin extensions. It offers a rich command-line interface for formatting, validation, and version management, seamlessly integrating into CI/CD workflows. Whether you're a beginner or an expert, mbake significantly improves Makefile writing efficiency and readability.

(github.com)

Development linter

Sony Ends Recordable Blu-ray Production After 18 Years

2025-01-24

Sony Ends Recordable Blu-ray Production After 18 Years

Sony is ceasing production of recordable Blu-ray discs in February, ending a nearly two-decade run. This also affects MiniDiscs and MiniDV cassettes. While Sony initially planned to continue production for business clients, dwindling consumer demand due to the rise of streaming services made it unsustainable. The article contrasts the convenience of streaming with its drawbacks: lack of ownership, monthly costs, and security concerns. It highlights the advantages of optical media for long-term archival storage and mentions competitors like Pioneer offering century-lasting Blu-ray discs and research into even longer-lasting glass storage.

(www.tomshardware.com)

Tech Blu-ray Data Storage

JWST Captures a Stunning Einstein Ring

2025-04-02

JWST Captures a Stunning Einstein Ring

The James Webb Space Telescope (JWST) has captured a breathtaking image: a nearly perfect 'Einstein Ring'. This ring-like structure is caused by the gravitational lensing effect of a closer elliptical galaxy on a more distant spiral galaxy. Light from the farther galaxy is bent by the gravity of the nearer galaxy, creating an almost perfect circle. This phenomenon verifies Einstein's prediction of general relativity and showcases the power of modern telescopes, allowing us to peer into the depths of the universe and appreciate this cosmic artwork.

(phys.org)

Tech

Great Question (YC) Hiring People Operations Manager

2024-12-12

Great Question (YC) Hiring People Operations Manager

Great Question, a YC-backed startup simplifying customer research, is seeking an experienced People Operations Manager. This role will focus on streamlining recruitment, onboarding, compensation standardization, and enhancing company culture to boost employee engagement and retention. The ideal candidate will have 3+ years of experience in people operations, expertise in compensation and performance management, excellent communication skills, and a proven ability to thrive in a remote work environment. This is a crucial opportunity to contribute to a rapidly growing startup.

(www.ycombinator.com)

Startup Hiring People Operations YC Startup

Linear Pluggable Optics (LPO): The Next Big Thing in Data Center Power Efficiency?

2025-03-08

Linear Pluggable Optics (LPO): The Next Big Thing in Data Center Power Efficiency?

Linear pluggable optics (LPO) is gaining traction as a solution for fast, efficient data movement in and out of server racks. However, a lack of standardization for connecting optical modules is hindering wider adoption, despite growing pressure to reduce data center power consumption. While less power-efficient than co-packaged optics (CPO), LPO offers better thermal protection. The Optical Internetworking Forum (OIF) is developing electrical standards to improve interoperability, paving the way for broader LPO deployment and enhanced data center energy efficiency.

(semiengineering.com)

Tech Data Center Power Efficiency

Does X Cause Y? A Deep Dive into Confusing Research

2025-02-14

Does X Cause Y? A Deep Dive into Confusing Research

An investigation into whether X causes Y reveals a chaotic landscape. Hundreds of studies, mostly observational, show correlation but not causation, plagued by confounding factors. A handful of more sophisticated studies offer intriguing but contradictory findings. Ultimately, the author concludes that X might cause Y, based on intuition, not robust evidence. The piece highlights the pitfalls of social science research and the inherent uncertainty in its conclusions.

(www.cold-takes.com)

Misc social science research research methodology

Efficient 3D Mesh Smoothing: Ditching Neighbor Lookups

2025-03-16

This blog post presents an efficient algorithm for 3D mesh smoothing that avoids the need for complex half-edge data structures. Using a 'throwing vertices' approach, it directly iterates over triangle faces, accumulating neighbor vertex positions in a single pass to calculate average positions for smoothing. This eliminates neighbor lookups, boosting efficiency. The post also explores several parallelization methods, including using atomic operations and precomputing neighbor lists, comparing their performance differences. Finally, it shows how to recompute vertex normals after smoothing.

(nosferalatu.com)

Development mesh smoothing

Deterministic Uniform Disk Sampling: A Novel Algorithm

2025-01-27

Deterministic Uniform Disk Sampling: A Novel Algorithm

This article presents a deterministic algorithm for generating N uniformly distributed points on a disk with diameter D. The algorithm divides the disk into M concentric rings, proportionally allocating points based on ring circumference. It then samples in polar coordinates, converting to Cartesian coordinates for the final point locations. The algorithm cleverly handles the relationship between point count and ring radius, and provides a simple integerization method, ensuring exactly N points are generated.

(victorpoughon.fr)

Development sampling

OpenAI's GPT-5 Project Hit by Delays and High Costs

2024-12-23

OpenAI's GPT-5 Project Hit by Delays and High Costs

OpenAI's highly anticipated GPT-5 project, codenamed 'Orion,' is significantly behind schedule and facing substantial cost overruns, according to the Wall Street Journal. Intended as a major leap forward for the technology powering ChatGPT, the project is encountering challenges, including concerns about insufficient data to reach its ambitious intelligence goals. Microsoft, OpenAI's largest investor, had expected the new model by mid-2024, but that timeline is now uncertain. The project, underway for over 18 months, faces an unclear future.

(www.wsj.com)

AI

LLMs: Exploring Arithmetic Capabilities in the Pursuit of AGI

2024-12-24

This article explores why large language models (LLMs) are being used for calculation. While LLMs excel at natural language processing, researchers are attempting to make them perform mathematical operations, from simple addition to complex theorem proving. This isn't to replace calculators, but to explore the reasoning capabilities of LLMs and ultimately achieve artificial general intelligence (AGI). The article points out that humans have always tried to use new technology for computation, and testing the mathematical abilities of LLMs is a way to test their reasoning abilities. However, the process of LLMs performing calculations is drastically different from that of calculators; the former relies on vast knowledge bases and probabilistic models, while the latter is based on deterministic algorithms. Therefore, LLM calculation results are not always accurate and reliable, highlighting the trade-off between practicality and research.

(vickiboykis.com)

AI Artificial General Intelligence Computational Ability

Unintended Consequences: How Sesame Allergen Labeling Backfired

2025-05-23

A new US regulation mandating sesame allergen labeling, intended to protect allergy sufferers, has yielded unexpected consequences. To mitigate recall and litigation risks associated with cross-contamination, some manufacturers are adding small amounts of sesame to products that previously didn't contain it. While technically compliant, this reduces options for sesame-allergic consumers. Researchers used the USDA Global Branded Food Products Database to analyze ingredient changes, finding breads and baked goods most affected. The study highlights the complexities of policymaking and how real-world implementation may deviate from intended goals.

(www.choicesmagazine.org)

Tech allergen labeling regulatory unintended consequences

Polish City Uses Mussels to Monitor Water Quality

2025-02-03

The Dębiec Water Treatment Plant in Poznań, Poland, has implemented a novel water quality monitoring system using the natural intelligence of mussels. Highly sensitive to pollutants, mussels close their shells when water quality deteriorates. The system integrates mussels with sensors and a computer network; if four or more mussels close simultaneously, the system automatically shuts down, signaling pollution. This AquaNES project, supported by the European Union, showcases the integration of nature-based elements into water management and highlights the symbiotic relationship between humans and nature.

(www.awa.asn.au)

Tech water quality monitoring biosensors

4D Rotation Curved Space Shader with three.js

2025-05-22

4D Rotation Curved Space Shader with three.js

A GLSL shader built with three.js that simulates curved space by projecting 3D models onto a 4D unit sphere using 4D rotation and stereographic projection. Originally written in HLSL for the Unity game Sfera, this shader allows users to zoom, rotate, and control the camera perspective to experience animated models moving within a curved space. An online demo and video tutorial are available. Models are loaded at runtime from the three.js repository.

(github.com)

Development 4D Graphics

Hadrius Hiring Founding UI/UX Designer, Up to $150K

2024-12-18

Hadrius Hiring Founding UI/UX Designer, Up to $150K

Hadrius, a Y Combinator-backed fintech startup, is hiring a Founding UI/UX Designer. They're using AI to automate the back office for financial firms, preventing future financial crises. The role is full-time in New York City, offering $80K-$150K salary and 0.01%-0.15% equity. The ideal candidate is a highly skilled designer with experience at a design-focused tech company, proficient in Figma, and passionate about Hadrius's mission. The team boasts engineers from Google, Chime, and other top companies, and the company is experiencing hyper-growth, doubling revenue every three months.

(www.ycombinator.com)

Development UI/UX Design

C.O.R.E: Your Private, Shareable Memory for LLMs

2025-07-02

C.O.R.E: Your Private, Shareable Memory for LLMs

C.O.R.E is a shareable memory for LLMs that's private, portable, and 100% user-owned. Run it locally or use the hosted version, connecting with tools like Cursor and Claude to share context across multiple platforms. Built to provide complete ownership of your memory and to enhance AI assistant responses with personalized context, facts, and preferences. Llama model support is under active development.

(github.com)

AI Memory

Painteresque: Turn Your Photos into Art with AI

2025-03-01

Painteresque: Turn Your Photos into Art with AI

Painteresque is a local mobile app that transforms your photos into various art styles like oil paintings, charcoal sketches, and colored pencil drawings in seconds. It offers multiple filters and customizable settings, with results varying depending on the photo content; landscapes and still lifes generally work well, while portraits may have mixed results. All features are free, with no ads or trackers; developers rely on optional in-app tips for support.

(apps.apple.com)

Design mobile app

Unearthing Lost Gaming History: A Deep Dive into Games That Weren't

2025-06-26

Unearthing Lost Gaming History: A Deep Dive into Games That Weren't

Games That Weren't (GTW), a non-profit archive, is dedicated to preserving cancelled and unreleased video games. Recently uncovered treasures include a rare Alien 3 prototype for the Commodore 64, the Flash game Carts of Fury, and an early Game Boy title, Sorcerer. These discoveries offer glimpses into the often-unknown stories behind game development, showcasing GTW's significant contribution to game preservation. Operating since 1999, GTW's extensive archive spans various platforms and eras, providing invaluable resources for gaming enthusiasts.

(www.gamesthatwerent.com)

Game game prototypes

Optimal Brain Processing: The Key Role of Excitatory-Inhibitory Balance

2025-03-10

Optimal Brain Processing: The Key Role of Excitatory-Inhibitory Balance

New research reveals a crucial aspect of brain information processing: the balance between excitatory and inhibitory neuronal activity is key to optimal information encoding. Researchers from the University of Padova, the Max Planck Institute for the Physics of Complex Systems, and EPFL used mathematical models and information theory to show that balanced activity of these two neuron types enables efficient information processing, accurately encoding both long-timescale and rapidly changing inputs. This finding offers new insights into brain information processing and guides future neuroscientific research.

(phys.org)

Tech neuronal balance

Run LLMs Locally on Your Mac with Ollama

2025-02-16

Apple announced Apple Intelligence at WWDC 2024, promising "AI for the rest of us," but its arrival feels distant. Meanwhile, Ollama lets you run large language models (LLMs) like llama3.2 locally on your Mac. Think of it as 'Docker for LLMs' – easy to pull, run, and manage models. Powered by llama.cpp, Ollama uses Modelfiles for configuration and the OCI standard for distribution. Running models locally offers advantages in privacy, cost, latency, and reliability. Ollama exposes an HTTP API for easy integration into apps, as demonstrated by Nominate.app, which uses it for intelligent PDF renaming. The article encourages developers to build the next generation of AI-powered apps now with Ollama, instead of waiting for Apple's promises.

(nshipster.com)

Development

Evil Combinatorialist and 16 Wines: An Information Theory Puzzle

2025-08-21

Trapped in an evil combinatorialist's wine cellar, you're presented with 16 unlabeled bottles of wine, each from a different year between 0 and 15, and four binary measuring devices. Each device measures one bottle, outputting 0 or 1. The goal is to identify the year of each wine with 50 or fewer measurements. While it seems to require 64 measurements, exploiting the uniqueness of the years, a divide-and-conquer approach, starting by measuring most bottles with one device, dividing them into groups based on the result, and recursively applying the method, can solve it within 49 measurements. This puzzle cleverly combines information theory and combinatorics, showcasing how to leverage information asymmetry to reduce computational effort.

(chriskw.xyz)

Misc Combinatorics Puzzle

AFRINIC Election Annulment Sparks Internet Governance Crisis

2025-07-12

AFRINIC Election Annulment Sparks Internet Governance Crisis

The annulment of the recent African Network Information Center (AFRINIC) election by the court-appointed receiver, without explanation, has prompted warnings from ICANN and calls for AFRINIC's dissolution. Concerns over potential irregularities, including forged powers of attorney, led to the cancellation. ISPA alleges fraudulent use of powers of attorney during in-person voting. AFRINIC's silence fuels the crisis, with ICANN threatening intervention and Cloud Innovation filing for liquidation. This highlights AFRINIC's long-standing governance issues and concerns about the stability of the African internet.

(www.theregister.com)

Tech Election Fraud

Elm's Governance Crisis: A Contributor's Account

2025-02-16

A long-time Elm contributor details their reasons for leaving the community, citing the Elm core team's leadership style and restrictive native module policies. The author describes autocratic decision-making, lack of transparency and fairness, and suppression of community contributions. They argue that the core team's actions violate the spirit of open source and unfairly impact community members, especially non-native English speakers and minority groups. The post raises concerns about governance and fairness in open-source projects.

(lukeplant.me.uk)

Development open source governance native modules

US Fusion Firm Eyes Japan Deployment in the 2030s

2025-09-07

US Fusion Firm Eyes Japan Deployment in the 2030s

Commonwealth Fusion Systems, a US-based nuclear fusion developer, aims to deploy a reactor in Japan in the late 2030s or early 2040s, aligning with Japan's broader plans for this low-carbon energy source. The company, which recently secured $863 million in funding, is collaborating with a consortium of 12 Japanese companies, including Mitsui & Co. and Mitsubishi Corp., to facilitate technology transfer and knowledge sharing. Commonwealth is also developing a 400-megawatt commercial power plant in Virginia, targeting operation in the early 2030s, with Google committed to purchasing half its output.

(www.japantimes.co.jp)

Tech

Bacterial Infection May Trigger Heart Attacks: New Research

2025-09-14

Bacterial Infection May Trigger Heart Attacks: New Research

New research reveals a surprising link between bacterial infection and myocardial infarction. The study found that atherosclerotic plaques harbor bacterial biofilms shielded from the immune system and antibiotics. Viral infections or other triggers can activate these biofilms, causing inflammation and plaque rupture, leading to thrombus formation and heart attacks. This discovery opens doors for novel diagnostic and therapeutic strategies, and even potentially preventative vaccination against coronary artery disease and myocardial infarction.

(www.tuni.fi)

Tech myocardial infarction

Automerge 3.0: 10x Memory Reduction!

2025-08-06

Automerge 3.0 is here, boasting a massive memory usage reduction—up to 10x or more! This game-changing improvement, achieved by using a compressed representation at runtime, tackles the memory bloat previously experienced with documents having long histories. For instance, processing Moby Dick went from 700MB to a mere 1.3MB! In addition to this, the update includes API cleanup, particularly for text handling, resulting in enhanced performance and reliability. Existing users can easily upgrade, and new users are encouraged to give it a try.

(automerge.org)

Development Collaborative Editing

Steam Beta Simplifies Linux Gaming: Proton Enabled by Default

2025-06-19

Steam Beta Simplifies Linux Gaming: Proton Enabled by Default

A recent Steam Beta client update simplifies Linux gaming by changing how Proton is enabled. Proton, Steam's compatibility layer for running Windows games on Linux, previously required manually enabling the "for all other titles" option. This option has been removed, and Proton is now enabled by default in the Steam Beta. This streamlined process eliminates a common source of frustration for Linux gamers. The change doesn't force Proton on every game, nor does it override native Linux titles.

(www.gamingonlinux.com)

Game

Nanosensors Detect Pancreatic Cancer in Blood Tests

2025-02-13

Nanosensors Detect Pancreatic Cancer in Blood Tests

Researchers have developed a groundbreaking blood test using nanosensors to detect pancreatic cancer early. The test focuses on identifying active proteases, enzymes present even in the earliest stages of tumors. In a study of 356 individuals, the nanosensors achieved 98% accuracy in identifying healthy individuals and 73% accuracy in detecting pancreatic cancer, distinguishing it from other pancreatic diseases. This advance holds immense promise for improving early detection and treatment of pancreatic cancer, offering a lifeline to millions.

(www.nature.com)

Tech nanosensors pancreatic cancer early detection

8 Visual Patterns to Improve Code Readability

2025-03-11

8 Visual Patterns to Improve Code Readability

A programmer auditing code found themselves mentally fatigued despite high-quality code. The culprit wasn't cyclomatic complexity, but readability. Research revealed eight visual patterns to improve readability: minimize line/operator/operand count; avoid novelty in function shapes, operators, or syntactic sugar; group long function chains; keep conditionals short; avoid gotos; minimize nesting; use descriptive and visually distinct variable names; and shorten variable lifetimes. These patterns help improve code readability, reduce bugs, and increase developer productivity.

(seeinglogic.com)

Development

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