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Biomachining: Using Bacteria to Machine Metal

2025-01-28

Biomachining is a novel machining process employing lithotrophic bacteria, such as Thiobacillus ferrooxidans and Thiobacillus thiooxidans, to remove material from metal parts. These bacteria utilize the chemical energy from iron or copper oxidation to remove material from a metal surface when immersed in a culture fluid. Unlike traditional chemical or physical machining, biomachining offers a low material removal rate and a superior surface finish, making it ideal for micromachining. This process has been successfully used on pure iron and copper, and involves masking the areas not to be machined, similar to chemical milling. The process's depth is influenced by factors like stirring rate and temperature.

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(en.wikipedia.org)
Tech biomachining metal machining

Reliable Data Replication from PostgreSQL to ClickHouse using PeerDB

2025-02-22
Reliable Data Replication from PostgreSQL to ClickHouse using PeerDB

This article demonstrates how to reliably replicate data from PostgreSQL to ClickHouse using PeerDB, a change data capture (CDC) solution specializing in PostgreSQL. It compares self-hosted open-source PeerDB with a fully managed version integrated into ClickHouse Cloud (via ClickPipes). Core concepts like creating peers, mirrors, and data transformations are explained, along with a step-by-step deployment and configuration guide. Whether using the open-source or managed route, PeerDB offers a highly performant and reliable data replication solution for PostgreSQL and ClickHouse users.

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(benjaminwootton.com)
Development data replication

Upgrading Capitalism: A Survival Guide

2025-05-06
Upgrading Capitalism: A Survival Guide

The author recounts personal experiences of the dot-com bubble burst in 2000 and the 2008 financial crisis, highlighting the inherent instability within capitalism despite its undeniable successes. He argues that while capitalism has lifted billions out of poverty, its core is inherently unstable. With a potential 'Papa Bear' level crash looming, the author suggests that ignoring the risks is as dangerous as blindly fighting the system. The essay calls for upgrading capitalism – retaining its strengths while mitigating its flaws – and invites readers to join the crucial conversation.

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(upgradingcapitalism.substack.com)
Startup

Klong: A Concise Array Language

2025-06-20

Klong is a concise array language similar to K, but without the ambiguity. It uses mathematical notation for programming, which might seem simplistic to those familiar with K or APL, while posing a challenge to newcomers. Comprehensive documentation is available, including a reference manual, introductory guide, quick reference, and a comparison of Klong and K. Written in pure ANSI C, it's easy to compile and install, and a vectorized version called KlongPy is also available.

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(t3x.org)
Development

IBM CEO: Global Trade Isn't Dead, AI Is a Tool, Not a Panacea

2025-03-12
IBM CEO: Global Trade Isn't Dead, AI Is a Tool, Not a Panacea

IBM CEO Arvind Krishna, speaking at SXSW, asserted that despite the Trump administration's attacks on globalism, global trade remains vital for US growth. He emphasized the importance of attracting global talent, arguing that the US should be a hub for international expertise. While acknowledging AI's potential, Krishna cautioned against overhype, predicting AI will write only 20-30% of code, boosting programmer productivity rather than replacing them. He compared AI to calculators and Photoshop, highlighting its role in improving quality and predicting significant energy efficiency improvements. However, Krishna expressed greater optimism for quantum computing's role in scientific discovery, believing AI is limited to learning from existing knowledge and incapable of generating truly novel insights. His views contrast with those of OpenAI's Sam Altman, who anticipates a more transformative impact from AI.

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(techcrunch.com)
Tech Global Trade

Building a Personal Brand Like Bryan Johnson's 'Don't Die' Movement

2025-02-18
Building a Personal Brand Like Bryan Johnson's 'Don't Die' Movement

Bryan Johnson's 'Don't Die' lifestyle, featuring a daily regimen of 100 pills, has catapulted him to internet fame. This article dissects his branding success, highlighting five key elements: standing out with a unique and provocative mission ('Don't Die'), a catchy slogan easily adaptable to various media, appealing to a niche audience deeply invested in longevity, choosing a clear enemy (unhealthy food companies), and riding current trends (the growing health and wellness movement). Johnson's massive social media following (millions across platforms) demonstrates the power of this approach.

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(www.petecodes.io)
Startup personal branding marketing strategy influencer marketing

Robustness Testing of Medical AI Models: MIMIC-III, eICU, and SEER Datasets

2025-03-29
Robustness Testing of Medical AI Models: MIMIC-III, eICU, and SEER Datasets

This study evaluates the accuracy of machine learning models in predicting serious disease outcomes: 48-hour in-hospital mortality risk, 5-year breast cancer survivability, and 5-year lung cancer survivability. Three datasets—MIMIC-III, eICU, and SEER—were used, employing models such as LSTM, MLP, and XGBoost. To test model robustness, various test case generation methods were designed, including attribute-based variations, gradient ascent, and Glasgow Coma Scale-based approaches. The study assessed model performance on these challenging cases, revealing varying performance across datasets and methods, highlighting the need for further improvements to enhance reliability.

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(www.nature.com)
AI Model Robustness Datasets

Daily Murder Mystery: Solve the Case and Save the Day!

2025-01-15
Daily Murder Mystery: Solve the Case and Save the Day!

Mystery-o-matic is a website offering free daily murder mysteries, created by two passionate individuals. Unlike typical games, its daily mysteries emphasize deductive reasoning and mimic the unpredictability of real-life scenarios, resulting in varied difficulty. Each daily mystery is procedurally generated, offering a fresh twist on traditional deduction games. The website is still in beta, so rules, interface, and design are subject to change.

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(mystery-o-matic.com)
Game mystery game daily puzzle deductive reasoning

Haiti: A Year of Brutal Violence Pushes City to the Brink of Collapse

2025-03-30
Haiti: A Year of Brutal Violence Pushes City to the Brink of Collapse

A year of horrific violence in Haiti culminated in a five-day massacre in December, where 207 people were killed by gangs in a Port-au-Prince slum. The gang leader blamed his mostly elderly victims for practicing voodoo and causing his child's death. Bodies were mutilated and burned. Gangs control approximately 90% of Port-au-Prince and killed an estimated 5,600 Haitians in 2024. The violence continues into the new year, forcing around 60,000 people to flee their homes in the past month. The city teeters on the edge of complete collapse.

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(www.economist.com)
Misc Haitian violence gangs

AI Makes Strides in Mathematics: OpenAI's o3 Model Achieves Remarkable Score on FrontierMath Dataset

2024-12-23
AI Makes Strides in Mathematics: OpenAI's o3 Model Achieves Remarkable Score on FrontierMath Dataset

OpenAI's new language model, o3, achieved a 25% accuracy rate on the FrontierMath dataset, sparking a debate within the mathematics community about AI's mathematical capabilities. FrontierMath is a secret dataset containing hundreds of complex mathematical problems that require calculating specific numerical values rather than simply proving theorems. o3's performance is surprising, as it surpasses the previous limitations of AI, which could only solve problems at the level of math olympiads or undergraduate studies. While the dataset's difficulty and sample representativeness remain debated, this achievement marks significant progress for AI in mathematics, prompting reflections on AI's future development and the direction of mathematical research.

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(xenaproject.wordpress.com)
AI

AI-Powered Nano-3D Printing Creates Super Strong, Lightweight Material

2025-01-28
AI-Powered Nano-3D Printing Creates Super Strong, Lightweight Material

Researchers at the University of Toronto have used machine learning to design nano-architected materials with the strength of carbon steel but the lightness of Styrofoam. By combining a machine learning algorithm with two-photon polymerization 3D printing, the team optimized the nanolattice structure, achieving a strength-to-weight ratio five times higher than titanium. This breakthrough holds potential for aerospace applications, reducing fuel consumption and carbon emissions.

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(news.engineering.utoronto.ca)
Tech

Does L-Theanine Actually Work? A Blinded Self-Experiment Yields Surprising Results

2025-03-09
Does L-Theanine Actually Work? A Blinded Self-Experiment Yields Surprising Results

The author, a long-time user of L-theanine supplements, believed in its anxiety and stress-reducing effects. To test this, they conducted a 16-month double-blind experiment, comparing L-theanine against a vitamin D placebo. Surprisingly, L-theanine showed no significant benefit over the placebo. While statistically, stress levels decreased slightly after taking L-theanine, the placebo group showed a similar trend. The author couldn't reliably distinguish between L-theanine and the placebo. This casts doubt on L-theanine's efficacy and encourages further blinded studies to verify its purported benefits.

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(dynomight.net)
Misc L-Theanine Double-Blind Experiment Placebo Effect

Banksy's Trademark Battle: A Street Artist's Fight for His Name

2025-02-13
Banksy's Trademark Battle: A Street Artist's Fight for His Name

Anonymous graffiti artist Banksy is facing a legal battle over his trademark. Greeting card company Full Colour Black claims Banksy hasn't properly used his trademark, seeking its cancellation. Banksy denies this, stating he's used the trademark for merchandise sales. The April trial at the Intellectual Property Office marks a potential first public appearance for Banksy and his team. The case highlights the conflict between Banksy's artistic ethos and commercialization, questioning the limits of trademark rights in art.

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(robbreport.com)
Misc Trademark Art Commercialization

Building Games: 3 Months vs. 3 Days with LLMs

2025-08-25

A software engineer with 15 years of experience built two web-based card games based on Argentinian card games in his spare time: one in 3 months, the other in 3 days. The first, Truco, was built entirely by hand using Go for the backend and React for the frontend. The second, Escoba, leveraged the power of LLMs (Claude) to drastically reduce development time for the backend. The author details the process using Go, WASM, and React, providing a minimal Tic-Tac-Toe game as a starting point to encourage others to try game development.

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(marianogappa.github.io)
Game

LiveYou: Revolutionizing Learning with Real-time Interaction

2025-01-04

LiveYou is a groundbreaking online learning platform offering real-time interaction between students and instructors across any subject. Breaking free from traditional learning constraints, LiveYou provides a flexible, personalized learning experience. Users can select instructors and courses tailored to their needs, receiving personalized feedback and guidance through real-time interaction. This platform hints at a potential revolution in online education, offering learning unbound by time and location.

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(tma.live)
Misc online education real-time learning personalized learning

Pentagon Purges DEI Content: Historical Photos Among Thousands Flagged for Removal

2025-03-29
Pentagon Purges DEI Content: Historical Photos Among Thousands Flagged for Removal

The Department of Defense is undertaking a massive purge of diversity, equity, and inclusion (DEI) content from its websites and social media, targeting over 26,000 images. This includes photos of a World War II Medal of Honor recipient, the Enola Gay, and the first women to graduate from Marine infantry training. The action stems from President Trump's executive order ending DEI programs across the federal government. The purge has led to confusion, with images containing the word "gay" mistakenly flagged for removal, impacting both individuals with that surname and the aircraft itself. Historically significant photos, such as those of the Tuskegee Airmen, may be spared. The Pentagon claims it's working to comply rapidly, but the process is proving time-consuming and complex.

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(www.nbcwashington.com)
Tech content removal

Tesla's Australian Sales Plummet: Stockpiles, Price Wars, and Damaged Brand Image

2025-03-29
Tesla's Australian Sales Plummet: Stockpiles, Price Wars, and Damaged Brand Image

A large stockpile of unsold Tesla Model Ys in a Perth parking lot highlights the brand's struggles in Australia. Increased competition, price wars, and Elon Musk's political activities have all contributed to declining sales. Dealers are slashing prices to clear inventory, hurting previous buyers and damaging customer trust. Inadequate charging infrastructure in Australia further exacerbates the issue, pushing consumers towards hybrid vehicles.

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(au.news.yahoo.com)
Tech

LLM Identity Confusion: A Crisis of Trust Emerges

2024-12-30
LLM Identity Confusion: A Crisis of Trust Emerges

A recent study reveals widespread "identity confusion" in Large Language Models (LLMs). Researchers found that over 25% of LLMs exhibit misrepresentation of their origins or identities, primarily stemming from model hallucinations rather than replication or reuse. This identity confusion significantly erodes user trust, especially in critical tasks like education and professional use, surpassing the negative impact of logical errors. The findings highlight the systemic risks posed by LLM identity confusion and call for greater attention to model reliability and trustworthiness.

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(arxiv.org)
AI Identity Confusion Trust Crisis

Can LLMs Create a Realistic Sheep Herding Game?

2025-03-11
Can LLMs Create a Realistic Sheep Herding Game?

A developer challenged large language models (LLMs) to create a sheep herding game called "Shepherd's Dog," focusing on realistic flocking behavior. The detailed prompt included specifications for sheep movement, reactions to the dog and obstacles, and gameplay mechanics. The LLMs were tasked with building the entire game within a single index.html file using HTML, CSS, and JavaScript, featuring at least 10 levels, a timer, scoring system, and saved game progress. The experiment showcases the potential of LLMs in game development.

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(github.com)
Game Game Design

OmniAI (YC) is Hiring a Full-Stack Engineer

2025-01-07
OmniAI (YC) is Hiring a Full-Stack Engineer

OmniAI, a Y Combinator-backed startup, is hiring a full-stack engineer with a salary of $125,000-$175,000 and equity. They're building a new way to work with unstructured data, enabling large-scale analytics previously impossible. The ideal candidate has 3+ years of experience, proficiency in Node.js, TypeScript, React/NextJS, Postgres, and a deep understanding of LLMs and OCR. The interview process involves a phone screen, architecture design interview, and an on-site coding challenge.

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(www.ycombinator.com)
Development

The Curious History of JavaScript Comments: Why `<!--` and `-->` Work

2025-03-12

This article unravels the curious history behind the use of `` as comment characters in JavaScript. Initially, to ensure compatibility with older browsers, developers would wrap their JavaScript code within HTML comments inside `` tags. Surprisingly, modern browsers still support this syntax due to historical browser compatibility burdens and the standardization committee's commitment to 'not breaking the web'. The article explains how this syntax works and why `-->` must appear at the beginning of a line.

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(www.hillelwayne.com)
Development

Swiftly 1.0 Released: Simplifying Swift Toolchain Management

2025-03-30
Swiftly 1.0 Released: Simplifying Swift Toolchain Management

Swiftly 1.0 is officially here! This community-supported Swift version manager is now an official part of the core Swift toolchain. It simplifies installing, managing, and updating your Swift toolchain across various platforms, including Linux and macOS. Swiftly supports installing stable releases, nightly snapshots, and older versions, allowing for seamless switching between multiple toolchains. You can even standardize versions across your development team using a `.swift-version` file in your project. Written in Swift itself and self-updating, Swiftly streamlines your Swift development workflow.

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(www.swift.org)
Development Version Manager

28-Hour Days: A Year-Long Experiment

2025-01-09

The author shares their experience of living on a 28-hour day schedule for a year. They found it to be the second best thing they've done for their health, after regular exercise. Adaptation took two months, involving overcoming sleepiness and communication challenges with their partner. Strategic naps became key to managing their schedule, and they've become adept at switching between 28 and 24-hour cycles. While the unconventional schedule complicates social interactions, the author reports significant benefits: improved sleep consistency, increased free time, more frequent exercise, and a quieter, less crowded environment for workouts. Despite the social adjustments, the benefits are deemed to far outweigh the inconveniences.

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(sidhion.com)
Misc lifestyle sleep schedule

Capital Letters Make Smaller QR Codes: A URL Encoding Mystery

2025-02-25
Capital Letters Make Smaller QR Codes: A URL Encoding Mystery

Two QR codes pointing to the same URL, one larger than the other. Why? The answer isn't error correction, but encoding mode. A URL in all capital letters uses the more compact alphanumeric mode, while lowercase uses byte mode, leading to data redundancy and a larger QR code. This highlights the impact of character set choices in URL encoding on QR code size. For the smallest QR code, use uppercase letters.

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(shkspr.mobi)
Tech QR code URL encoding

AI Chatbots in the Workplace: Adoption and Impact

2025-02-25
AI Chatbots in the Workplace: Adoption and Impact

A survey reveals that only a small percentage of workers regularly use AI chatbots, with younger (18-29) and postgraduate-educated individuals showing higher adoption rates. Common uses include research, content editing, and report writing. While 40% of users find AI chatbots highly efficient, a majority (69%) have never used them, citing lack of need or interest. Employer attitudes are largely neutral, with encouragement limited to certain sectors like information technology and finance.

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(www.pewresearch.org)
Tech AI chatbots workplace adoption

Steve Jurvetson: The Space-Obsessed VC Who Backed Tesla and SpaceX

2025-02-04
Steve Jurvetson: The Space-Obsessed VC Who Backed Tesla and SpaceX

This article profiles Steve Jurvetson, a legendary Silicon Valley venture capitalist whose office is a museum of space artifacts. His unique investment philosophy—backing only history-making innovations—led him to invest in transformative companies like Hotmail, Skype, Tesla, and SpaceX. The piece traces his journey from a curious childhood filled with scientific exploration to his rapid-fire academic career at Stanford, his close relationships with Steve Jobs and Elon Musk, and his distinctive investment approach. Jurvetson emphasizes the importance of maintaining a 'childlike mind' as key to staying ahead of the curve in the investment world.

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(cloudvalley.substack.com)
Startup Tech Investing

EU Lures US Scientists with €500M Initiative Amidst Funding Cuts

2025-05-10
EU Lures US Scientists with €500M Initiative Amidst Funding Cuts

Responding to funding cuts and skepticism towards science in the US, the EU launched 'Choose Europe for Science', a €500 million initiative (2025-2027) to attract researchers, particularly from the US. The program offers long-term stability, streamlined processes, and aims to increase R&D investment to 3% of GDP. With its substantial research programs and supportive environment, the EU hopes to attract top talent and solidify its scientific leadership.

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(es.wired.com)
Tech talent competition

Control Your iTerm from LLMs with iterm-mcp

2025-01-30
Control Your iTerm from LLMs with iterm-mcp

iterm-mcp is a Model Context Protocol (MCP) server providing LLM access to your iTerm session. It features efficient token usage by only reading the output the model needs; natural integration allowing LLMs to interact with iTerm, answering questions or performing tasks; and full terminal control with REPL support. Easy to install via npx and integrate with clients like Claude Desktop, it prioritizes simplicity. However, it lacks built-in safety restrictions, requiring users to monitor model activity and exercise caution.

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(github.com)
Development

VirtualBox VM Escape Vulnerability: Integer Overflow Leads to Host Compromise

2025-05-17
VirtualBox VM Escape Vulnerability: Integer Overflow Leads to Host Compromise

A high-severity integer overflow vulnerability in VirtualBox's vmsvga3dSurfaceMipBufferSize function allows attackers to manipulate a malloc call, allocating 0 bytes while VirtualBox tracks a larger buffer size. This leads to linear read/write primitives, escalating to arbitrary read/write access of host memory. A proof-of-concept demonstrates complete virtual machine escape. Exploitation involves triggering a buggy surface allocation, exploiting out-of-bounds read/write, arbitrary heap allocation, and finally gaining RIP control for arbitrary code execution. A patch is available; users should update immediately.

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(github.com)
Tech VM escape
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