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What's Algebraic About Algebraic Effects?

2025-09-22

What's Algebraic About Algebraic Effects?

This article delves into the meaning of "algebraic" in the context of programming, focusing on algebraic effects. The author argues that algebraicity in programming lies in its composability, achieved by constraining data structures and operations to guarantee specific system properties. CRDTs, for instance, leverage the algebraic structure of a semilattice to address data synchronization challenges in distributed systems. Algebraic effects extend this concept, allowing the composition of effects with guaranteed properties, thereby enhancing code composability and reliability. The author illustrates how to define algebraic properties to ensure specific behaviors using a key-value store example and points out that only dependent type languages like Coq or Lean can explicitly encode and prove these algebraic properties.

(interjectedfuture.com)

Development

Nostalgia Trip: Why Early Computers Were More Fun

2025-04-18

This article explores why older generations find early computers more enjoyable than modern ones. The author argues that the simplicity and limitations of early hardware – slow processors, low resolutions, limited memory – forced creative problem-solving, making the experience more engaging. The largely text-based internet fostered stronger human interaction, lacking the pervasive advertising and passive content consumption of today. The author posits that the appeal lay in the exclusivity; only those truly passionate about computers invested the time, creating a tight-knit community. As computers became ubiquitous and user-friendly, this unique aspect faded, replaced by accessibility but at the cost of depth and challenge.

(www.datagubbe.se)

Misc computer culture

Google Analytics Security Risks: A CISO's Headache

2025-04-26

Google Analytics Security Risks: A CISO's Headache

CISOs need to carefully assess the risks associated with sharing data with third parties, particularly when using Google Analytics. The article highlights that Google Analytics can inadvertently collect sensitive data, such as personally identifiable information (PII) embedded in URLs (names, emails, birthdates, etc.) or form field values. To prevent this, CISOs must ensure that when configuring Google Analytics, all query parameters, form inputs, and dynamic page elements that could contain sensitive data are filtered out. Otherwise, this data could be tracked and collected by Google Analytics, posing significant security risks.

(www.csoonline.com)

Tech

Java for Small Programs: Scripts and Notebooks

2024-12-18

This article explores the surprising effectiveness of Java for small programs, particularly scripting and exploratory programming. The author details how Java's features, like implicit classes, records, and enums, simplify code, highlighting the ease of running Java scripts without compilation (using JEP 330 and JEP 458). Managing external dependencies with JBang is also discussed. The article further delves into using Java within Jupyter Notebooks, acknowledging current limitations while expressing hope for future improvements in the ecosystem. The author's experience automating tedious tasks showcases Java's strength over alternatives like bash scripting and Python, emphasizing the advantages of static typing and robust tool support.

(horstmann.com)

Development Scripting

OSle: A 510-Byte Boot Sector OS

2025-05-02

OSle: A 510-Byte Boot Sector OS

OSle is a tiny (510-byte), real-mode operating system residing entirely within the boot sector. Written in x86 assembly, it surprisingly packs a shell, file system, process management, pre-built software, and an SDK for developing your own programs. The article provides detailed instructions for installation, building, running OSle locally (using Bochs or QEMU), and even running it on a real device (with a strong warning!). An online demo and tutorial are also available. This is a fascinating project for those interested in operating systems and low-level programming.

(github.com)

Development x86 assembly

Rivian Turns a Profit, But Faces Uncertain Future

2025-02-21

Rivian Turns a Profit, But Faces Uncertain Future

Electric vehicle maker Rivian reported its first positive gross profit in Q4 2024, reaching $170 million, thanks to cost-cutting measures on its R1 electric vehicles. However, the company anticipates lower vehicle sales in 2025 and reported a net loss of $4.7 billion for the full year, though an improvement on 2023. Revenue growth partly stems from regulatory credit sales to other automakers. While Rivian plans further cost reductions and remains optimistic, it faces uncertainties from shifting government policies and market demand.

(www.theverge.com)

Tech Financial Results

UK Fusion Firm Astral Systems Achieves First Tritium Breeding in Operational Reactor

2025-07-06

UK Fusion Firm Astral Systems Achieves First Tritium Breeding in Operational Reactor

Astral Systems, a UK-based private fusion company, has announced a groundbreaking achievement: successfully breeding tritium, a crucial fusion fuel, within its operational fusion reactor. This milestone, achieved in collaboration with the University of Bristol, overcomes a major hurdle in fusion energy development. Using their Multi-State Fusion (MSF) technology during a 55-hour Deuterium-Deuterium (DD) fusion irradiation campaign, they produced and detected tritium in real-time. This breakthrough, utilizing lattice confinement fusion and a unique reactor design, paves the way for sustainable fusion energy and opens doors to various applications, including medical isotope production and nuclear waste transmutation.

(interestingengineering.com)

Tech Fusion Energy Tritium Breeding

Unpublished Memoir of CP/M Creator Gary Kildall Released

2025-07-18

Unpublished Memoir of CP/M Creator Gary Kildall Released

A portion of an unfinished memoir by Gary Kildall, the creator of the CP/M operating system, has been released by the Computer History Museum. Written before his death in 1994, the excerpt details Kildall's early life and entrepreneurial journey, emphasizing his values of invention and a love of life over profit. Later chapters, detailing his struggles with alcoholism, will remain unpublished.

(spectrum.ieee.org)

Tech

Compressed Air Supercharging: The Next Big Thing in Drag Racing?

2025-04-07

Compressed Air Supercharging: The Next Big Thing in Drag Racing?

Drag racers are ditching traditional turbos and blowers for a new technology called Compressed Air Supercharging (CAS). CAS uses high-pressure air to supercharge engines, requiring no engine power and delivering extremely cold, dense air for superior performance and efficiency compared to traditional methods. Pioneered by Dale Vaznaian, CAS is gaining traction with racers like Tina Pierce and Ryan Mitchell achieving impressive results. While still in its early stages, its potential is undeniable, promising a revolution in drag racing power.

(www.thedrive.com)

Tech Compressed Air Supercharging Drag Racing Automotive Technology

Algebraic Effects: The Future of Programming Languages?

2025-05-24

Algebraic Effects: The Future of Programming Languages?

This article delves into the use of algebraic effects (effect handlers) in programming languages. Algebraic effects are a powerful mechanism that allows for implementing various language features such as exceptions, generators, and asynchronous operations as libraries, enhancing code composability. Using examples in Ante, the article demonstrates how algebraic effects can implement exception handling, generators, and coroutines, and how they can be leveraged for dependency injection, cleaner API design, and replacing global variables. Furthermore, algebraic effects can improve code purity, enhance replayability, and boost security. While efficiency concerns exist, advancements in compilation techniques suggest algebraic effects are poised to become a core feature in future programming languages.

(antelang.org)

Development algebraic effects

World's Largest Hydroelectric Dam Approved in Tibet

2025-01-05

World's Largest Hydroelectric Dam Approved in Tibet

China has approved the construction of the Yarlung Tsangpo Hydroelectric Project, set to become the world's largest hydropower dam complex. Located in Tibet near the India border, it's projected to generate nearly three times the electricity of the Three Gorges Dam, amounting to 300 TWh annually. While promising a significant boost to renewable energy, the project raises concerns about environmental impact, seismic risks in the region, and potential downstream effects on India.

(newatlas.com)

Tech Hydroelectric Dam Tibet Renewable Energy

LLM Jailbreak: Bad Grammar Bypasses AI Safety

2025-08-28

LLM Jailbreak: Bad Grammar Bypasses AI Safety

Researchers from Palo Alto Networks' Unit 42 discovered a simple method to bypass large language model (LLM) safety guardrails: using terrible grammar and long, run-on sentences. LLMs, lacking true understanding, predict text statistically; their safety features are easily circumvented. By crafting incomplete sentences, attackers can 'jailbreak' models before safety mechanisms engage, achieving 80-100% success rates. The researchers propose a 'logit-gap' analysis for evaluating model vulnerabilities and improving safety, emphasizing multi-layered defenses.

(www.theregister.com)

AI LLM jailbreak

Reading Passport NFC Chip Data with Python

2025-06-25

Reading Passport NFC Chip Data with Python

The author attempts to read the NFC chip data from their cancelled passport using the Python library pypassport. Due to the passport being cancelled, a portion of the MRZ (Machine Readable Zone) is missing. The author reconstructs the MRZ from other information on the passport and successfully reads the passport information, including biometric data. The article details the composition of the MRZ, checksum calculation methods, and the reading process, and discusses the possibility and practical value of brute-forcing the MRZ. Ultimately, the author demonstrates that while theoretically possible, brute-forcing is very difficult in practice, and reading the information directly from the passport is much more convenient and efficient.

(shkspr.mobi)

Development Passport

SWE-Bench Pro: A Challenging Benchmark for Evaluating LLMs on Software Engineering

2025-09-22

SWE-Bench Pro: A Challenging Benchmark for Evaluating LLMs on Software Engineering

SWE-Bench Pro is a new benchmark for evaluating large language models (LLMs) and agents on long-horizon software engineering tasks. Given a codebase and an issue, the model is tasked with generating a patch that resolves the described problem. Inspired by SWE-Bench, it uses Docker and Modal for reproducible evaluations, requiring users to set up a Docker environment and Modal credentials to run the evaluation script.

(github.com)

Development

Quoting in JavaScript: Inspired by Lisp for Modular Front-End Development

2025-06-01

Quoting in JavaScript: Inspired by Lisp for Modular Front-End Development

This article explores how the "code is data" concept from Lisp can improve modularity in JavaScript for web app development. The author points out JavaScript's lack of Lisp's quoting mechanism, preventing direct manipulation of code snippets as data. However, by mimicking quoting—sending client-side module identifiers instead of the actual code to the client—delayed execution and modular composition are achieved. This allows backend programs to compose server-side and client-side behaviors, ensuring all server-side logic completes within a single request/response cycle and enabling progressive streaming, thus improving efficiency and maintainability of web applications.

(overreacted.io)

Development

Tomb of First Caracol Ruler Unveiled, Rewriting Maya History

2025-07-17

Tomb of First Caracol Ruler Unveiled, Rewriting Maya History

Archaeologists at Caracol, Belize have unearthed the tomb of Te K’ab Chaak, the first ruler of this major Maya city. The discovery, the first identifiable ruler's tomb in over four decades, reveals a wealth of artifacts including jadeite jewelry, a mosaic mask, and pottery depicting Maya rulers and deities. The tomb's contents, along with a nearby cremation containing artifacts from Teotihuacan, Mexico, suggest complex interactions between the Maya and Teotihuacan civilizations as early as 350 AD, predating previously established timelines and challenging existing narratives about Maya social structure and political power. This groundbreaking discovery pushes back the date of significant Mesoamerican interaction and highlights the extensive travel networks of the ancient world.

(uh.edu)

Tech

Echo R1: Open-Source Music Player with High-Fidelity Audio

2025-04-24

Echo R1: Open-Source Music Player with High-Fidelity Audio

Echo R1 is an open-hardware music player built on free software, aiming for high-fidelity audio playback. Powered by an STM32H743 processor, it boasts 32MiB of RAM and a TLV320AIC3104 audio codec supporting up to 96kHz sampling rate. The device features a 4-way D-pad, 6 multi-function buttons, dual 3.5mm jacks (headphone and line out), a replaceable battery, and expandable storage up to 2TB. Currently in its R1 prototype stage, the project is addressing known issues like an un-disableable backlight and inconsistent component labeling, while also developing a 3D-printable case.

(github.com)

Hardware open hardware

Inflammation and Aging: Not a Universal Truth

2025-07-01

Inflammation and Aging: Not a Universal Truth

A new study from Columbia University challenges the long-held belief that inflammation is a universal hallmark of aging. Researchers compared industrialized populations (Italy and Singapore) with non-industrialized Indigenous groups (Tsimane of Bolivia and Orang Asli of Malaysia). They found that while 'inflammaging' (chronic, low-grade inflammation associated with aging) was prevalent in industrialized societies and linked to chronic diseases, it wasn't consistently observed in the Indigenous groups. In these populations, inflammation was more strongly correlated with infection rates than age. This suggests that inflammaging may be a byproduct of industrialized lifestyles rather than an inherent part of the aging process, opening up new avenues for intervention and highlighting the importance of considering context-specific factors in aging research.

(www.publichealth.columbia.edu)

Tech

DKIM Replay Attack Using Google Sites: A Fake Subpoena Scam

2025-07-25

DKIM Replay Attack Using Google Sites: A Fake Subpoena Scam

A friend received an email seemingly from Google, claiming a court subpoena demanding access to their Google account. While the email appeared legitimate at first glance, header inspection revealed a DKIM replay attack. The attacker used Google Sites to create a phishing site mimicking an official Google support page, forwarding the email via Namecheap's PrivateEmail service, bypassing SPF, DKIM, and DMARC verification. This case highlights the danger of leveraging trusted infrastructure (like Google Sites) for attacks, reminding us to be wary of any suspicious emails demanding urgent action or containing links to login pages.

(easydmarc.com)

Tech DKIM Replay Attack

Impossible Task: Dissecting a Square into an Odd Number of Equal-Area Triangles

2025-04-19

This article explores a deceptively simple geometric problem: can a square be dissected into any number of triangles with equal area? The answer, surprisingly, is complex. In 1970, Paul Monsky proved that it's impossible to dissect a square into an odd number of equal-area triangles. The proof cleverly combines Sperner's Lemma and 2-adic valuations. By ingeniously coloring the vertices of the triangles and analyzing the number of factors of 2 in the triangle's area using 2-adic valuation, a contradiction is reached, proving the proposition.

(mathmondays.com)

Misc

GPU-Driven Forward Rendering: 27,000 Stanford Dragons, 10,000 Lights, 60+ FPS!

2025-05-20

GPU-Driven Forward Rendering: 27,000 Stanford Dragons, 10,000 Lights, 60+ FPS!

This article details a GPU-driven forward renderer using clustered shading, achieving over 60 FPS rendering of 27,000 Stanford dragons with 10,000 lights on a GTX 1070. High performance is achieved by storing entity data in contiguous GPU buffers and using indirect multi-draw calls to minimize draw calls. The author meticulously explains techniques like culling, buffer management, and clustered shading, showcasing optimization strategies such as atomic counters and ballots for efficient buffer compaction. The article provides performance data and code examples, offering valuable insights into high-performance rendering.

(logdahl.net)

Development clustered shading

Ancient Egyptian Genomics: Unraveling the Origins and Evolution of Nile Civilization

2025-07-03

Ancient Egyptian Genomics: Unraveling the Origins and Evolution of Nile Civilization

A large-scale study utilizing ancient DNA technology delves deep into the genetic history of ancient Egyptian civilization. Researchers analyzed ancient Egyptian genomes spanning from the Neolithic period to the post-Roman era, revealing the complex composition of the ancient Egyptian population, including gene flow from the Near East, sub-Saharan Africa, and the Mediterranean. The study also traces changes in diet, lifestyle, and disease among ancient Egyptians, offering new insights into the rise and fall of this ancient civilization. This research not only enriches our understanding of ancient Egyptian history but also provides a valuable case study for ancient population genetics research.

(www.nature.com)

Tech population genetics

AI-Driven Job Losses: A Looming Societal Earthquake?

2025-05-24

AI-Driven Job Losses: A Looming Societal Earthquake?

DuckDuckGo user feedback reveals a growing backlash against AI, fueled by widespread job displacement fears. Unlike previous protests on climate change or data privacy, AI-induced unemployment could spark broader, longer-lasting societal unrest. Job losses span all sectors, impacting every income bracket. History shows mass unemployment can trigger violent protests and political instability. While AI may create new jobs, whether it compensates for losses and how to assist displaced workers remain open questions. This will test governments and societal resilience; a storm may be brewing.

(gabrielweinberg.com)

Tech

Punched Cards: A Forgotten Piece of Computing History

2025-02-26

Punched Cards: A Forgotten Piece of Computing History

In the 1950s and 60s, punched cards were ubiquitous in accounting, data collection, and early computing, with millions produced monthly by hundreds of companies worldwide. However, they quickly faded into obsolescence and disappeared from public awareness. This archive preserves a small selection of these cards and related ephemera, documenting a forgotten piece of technological history.

(punchcards.tristandavey.com)

Tech computing history historical archive

Shining Light Through the Head: A Breakthrough in Brain Imaging

2025-08-04

Shining Light Through the Head: A Breakthrough in Brain Imaging

Researchers at the University of Glasgow have achieved a breakthrough in brain imaging, successfully transmitting near-infrared light through an entire adult human head. This opens the door to cheaper, more portable brain imaging technology that overcomes the limitations of current methods like EEG and fMRI. The technology could enable deeper brain imaging, potentially revolutionizing diagnosis and treatment of neurodegenerative diseases like Alzheimer's. While still in its early stages, the potential impact on brain health diagnostics and treatment is immense.

(spectrum.ieee.org)

Tech brain imaging optical imaging

Raspberry Pi Pico-Controlled 3x5 LED Matrix: From Circuit Design to Web Control

2025-04-25

This tutorial details building a 3x5 LED matrix controlled by a Raspberry Pi Pico using tscircuit, enabling WiFi remote control. It covers circuit design, component selection (WS2812B LEDs), connection methodology (daisy-chaining LEDs), PCB layout, and a final web interface for control. Learn to create an LED matrix for displaying information, data visualization, or interactive notification systems.

(docs.tscircuit.com)

Hardware LED Matrix

A New Solution to the Fermi Paradox: Advanced Civilizations May Be Indistinguishable from Nature

2024-12-19

A New Solution to the Fermi Paradox: Advanced Civilizations May Be Indistinguishable from Nature

The Fermi Paradox highlights the contradiction between the high probability of extraterrestrial life and the lack of evidence for it. A new research paper proposes a solution: advanced civilizations might develop sustainable models where technology seamlessly integrates with their environment, rendering them undetectable. This challenges our assumptions about technological advancement and civilization expansion, prompting a reevaluation of SETI and our understanding of our own civilization's trajectory.

(www.universetoday.com)

AI Fermi Paradox extraterrestrial civilizations sustainable development

AI-Powered Recycling: Centerville Improves Efficiency with Pilot Program

2025-07-11

AI-Powered Recycling: Centerville Improves Efficiency with Pilot Program

Centerville, Ohio, has launched a months-long AI-powered pilot program to improve its recycling program. The program uses AI to identify non-recyclable items and send personalized postcards to residents with guidance. The $74,945 project, fully funded by a Montgomery County Solid Waste District grant, aims to reduce contamination, improve resource utilization, and ultimately boost the efficiency and cost-effectiveness of the city's recycling system.

(www.daytondailynews.com)

Tech waste management

Global Fossil Fuel Subsidies: A Climate Action Roadblock

2025-02-23

Global Fossil Fuel Subsidies: A Climate Action Roadblock

Massive government subsidies for fossil fuels are hindering climate change efforts worldwide. Despite pledges to reduce them, progress remains slow due to political and economic factors. Subsidies take many forms, from direct price controls to tax breaks and the externalization of environmental costs, artificially lowering fossil fuel prices and increasing consumption and emissions. The article analyzes the stubborn persistence of these subsidies, exploring opportunities and challenges for reform during energy price volatility, highlighting the need to balance climate goals with socioeconomic stability.

(theconversation.com)

Tech fossil fuel subsidies

The 4000 Carriage Companies: A Disruption Case Study

2025-07-09

The 4000 Carriage Companies: A Disruption Case Study

In the early 20th century, over 4,000 carriage companies dominated US transportation. The rise of the automobile, initially dismissed as unreliable and inferior, swiftly decimated this industry. This article analyzes the near-total collapse of this massive sector, highlighting how only a handful, like Studebaker, successfully pivoted to automobile manufacturing. The story serves as a stark warning for today's businesses facing the disruptive potential of AI, emphasizing the crucial need for adaptability, long-term vision, and a willingness to embrace change before it's too late. Failure often comes gradually, then suddenly.

(steveblank.com)

Startup corporate strategy

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