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Fastmail: Why We Stick With Our Own Hardware

2024-12-22

Fastmail, with 25 years of experience running its own hardware, details why they choose this approach over cloud services. Through careful hardware planning, in-house operational expertise, and maximizing hardware lifespan, they achieve significant cost optimization. From initial SAS and SATA drives to current NVMe SSDs and the ZFS filesystem, Fastmail continually upgrades, leveraging Zstandard compression for increased efficiency and reliability. A cost comparison of cloud storage, HDD upgrades, and building NVMe SSD servers led them to choose the latter for superior reliability, performance, cost-effectiveness, and the ability to fully utilize their internal network.

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(www.fastmail.com)
Tech hardware

Turing Machines: The Foundation of Computation

2024-12-21

This article provides a clear and accessible explanation of Turing machines—a theoretical model of computation. Starting with the operational principles of a Turing machine, it details its components (tape, head, program, and state) and illustrates programming techniques and capabilities through several examples, including printing characters, loops, and basic arithmetic. The article also explores computability and the halting problem, explains the concept of Turing completeness, and clarifies the connection between Turing machines and modern computers. Finally, the author provides an online editor for readers to write and run their own Turing machine programs, enhancing their understanding.

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(samwho.dev)
AI Turing machine computability algorithm

The Enigma of Luigi Mangione: A Bright Young Man and a Shocking Crime

2024-12-22

This article recounts the author's interactions with Luigi Mangione, the alleged assassin of UnitedHealthcare CEO Brian Thompson. Luigi, a bright young man from a wealthy family, purchased a premium membership to the author's blog, leading to a two-hour video call. During their conversation, Luigi expressed concerns about the erosion of human agency in modern society, likening many to unthinking 'NPCs' manipulated by technology. He voiced frustration with high US healthcare costs. The author's shock at Luigi's subsequent arrest for murder forms the crux of the article, exploring the complexities of motivation, the coexistence of kindness and cruelty, and the multifaceted nature of human behavior. The article raises questions about free will and societal influences on individual actions.

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(www.gurwinder.blog)
Misc free will social commentary murder mystery

Bogotá's Ciclovía: A 50-Year Legacy of Open Streets

2024-12-22

Bogotá's Ciclovía, a weekly program closing 75 miles of streets to cars for seven hours, celebrated its 50th anniversary. Born from a 1974 protest against traffic and pollution, Ciclovía has become a beloved tradition, drawing over 1.5 million people each Sunday. Its success has inspired over 400 cities worldwide to adopt similar programs. Ciclovía is more than just a recreational event; it's a testament to community building, improved public health, and a unique solution to urban challenges. The program's longevity and impact highlight its surprising power to foster social cohesion, promote equality, and even resolve political conflicts, demonstrating the potential for transformative urban interventions.

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(slate.com)
Misc sustainable transport community engagement

Implementing Raft: A Deep Dive into Distributed Consensus

2024-12-21

This is the first post in a series detailing the Raft distributed consensus algorithm and its Go implementation. Raft solves the problem of replicating a deterministic state machine across multiple servers, ensuring service availability even with server failures. The post introduces core Raft components: the state machine, log, consensus module, leader/follower roles, and client interaction. It discusses Raft's fault tolerance, the CAP theorem, and the choice of Go as the implementation language. Subsequent posts will delve into the algorithm's implementation.

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(eli.thegreenplace.net)
Development Distributed Consensus

Tao's New Paper: Delving into Eigenvalue Distribution of GUE and its Minors

2024-12-22

In his latest arXiv preprint, renowned mathematician Terence Tao delves into the distribution of eigenvalues of the Gaussian Unitary Ensemble (GUE) and its minors at fixed indices. Employing determinantal processes and sophisticated analytical techniques, the paper establishes several estimates regarding eigenvalue gaps, addressing previously unanswered questions and paving the way for future work on the limiting behavior of 'hives' with GUE boundary conditions. This research significantly contributes to the understanding of random matrix models and related fields.

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(terrytao.wordpress.com)
Development random matrices eigenvalue distribution

Internet Archive: A Digital Library of Free & Borrowable Texts, Movies, Music & Wayback Machine

2024-12-22

The Internet Archive is a non-profit organization dedicated to universal access to knowledge. It provides a massive digital library of websites (via the Wayback Machine), books, movies, music, and more, offering a free and easily accessible resource for researchers, educators, and the public. Users can freely browse and download these materials, exploring the history and cultural diversity of the internet.

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(archive.org)
Misc Internet Archive digital library

Ethereum On-Chain Upgrade Signaling EIP: Community Consensus Drives Upgrades

2024-12-22

This proposal introduces an on-chain mechanism allowing Ethereum clients to signal their readiness for protocol upgrades by embedding a "vote" indicator in the extraData field of newly mined blocks. Future fork activation blocks only occur if enough blocks within a specified window signal "for" the upgrade. This shifts upgrade decisions from the Ethereum Foundation to network participants, enhancing decentralization and mitigating centralization risks. The proposal also addresses trademark concerns and potential security vulnerabilities.

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(ethereum-magicians.org)
Development Ethereum Protocol Upgrade Decentralization

cqd: A Colorful Python Utility for Inspecting Object Attributes

2024-12-22

cqd is a lightweight Python utility that provides a colorful visualization of object attributes, simplifying object inspection during development and debugging. It color-codes attributes: dunder methods (blue), protected attributes (yellow), and public attributes/methods (green). For example, it's useful for easily viewing attributes of a Hugging Face tokenizer. Installation is easy via `pip install cqd`. Usage involves importing the `cqd` function and calling `cqd(your_object).

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(github.com)
Development debugging tool object attributes

Programmer Turns Movie Frames into AI Art

2024-12-19

A programmer used Python, OpenCV, and PIL libraries to transform movie frames into unique pieces of art. Extracting frames from videos, compressing colors, and generating barcode and circular "iris" images, the project, 'Movie Iris,' visualizes the evolution of a film's color themes. The open-sourced code can process any video, turning everyday moments into art.

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(github.com)
Development image processing AI art

The Future of Dashboard Design?

2024-12-23

This article explores the shortcomings of current dashboard design. The author points out that existing dashboards are often poorly designed and fail to effectively utilize the human visual system to process large amounts of information. The article reviews cognitive systems engineering research from the 80s and 90s on dashboard design, such as ecological interface design and visual momentum, and notes the current industry's lack of focus on improving dashboard design. The author calls for greater attention to dashboard design, to better integrate query functions and improve information processing efficiency.

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(surfingcomplexity.blog)
Development dashboard design observability user interface

Unveiling Cloud Cost Savings with Bare Metal

2024-12-22

Bare Metal Savings is a tool designed to help users analyze the true cost of cloud computing. It allows users to explore potential savings by using bare metal servers compared to traditional cloud services. Frequently asked questions revolve around price calculation methodology, accuracy, savings calculation assistance, whether it runs on bare metal, its suitability for all users, CapEx vs. OpEx considerations, benchmark availability, smaller instance options, and the inability to choose specific hardware. The tool aims to empower users with a clearer understanding and control over their cloud computing expenses.

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(baremetalsavings.com)
Tech bare metal server

Notion: Your All-in-One Workspace

2024-12-22

Notion is an all-in-one workspace that combines notes, task management, wikis, and databases into a single platform. It allows users to organize and manage all their information in one place, boosting productivity. Whether for personal notes, team collaboration, or knowledge base building, Notion caters to various needs, and its highly customizable features make it a powerful tool for efficient individuals.

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(qingant.notion.site)
Development note-taking app collaboration

Decoding the Telephony Signals in Pink Floyd's 'The Wall'

2024-12-22

A telecom hardware engineer decoded the telephony signals in a scene from Pink Floyd's 'The Wall'. The audio clip, featuring dial tones, rapid tone combinations, and an answer tone, was analyzed using spectrograms. By comparing the frequencies to known standards (DTMF, CAS R2, SS5), the engineer identified the signaling as SS5 and decoded the number as 044 1831. This analysis not only showcases the engineer's expertise but also reveals insights into the film's sound design and suggests a possible connection to a real-life London number.

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(corelatus.com)
Tech signal decoding telecommunications

INFP: An Audio-Driven Interactive Head Generation Framework for Natural Dyadic Conversations

2024-12-22

ByteDance introduces INFP, a novel audio-driven interactive head generation framework. Given dual-track audio from a dyadic conversation and a single portrait image, INFP dynamically synthesizes realistic agent videos with verbal, nonverbal, and interactive cues, including lifelike facial expressions and head movements. The lightweight framework is ideal for real-time communication like video conferencing. INFP uses a two-stage process: Motion-Based Head Imitation and Audio-Guided Motion Generation. The first stage projects facial communicative behaviors into a low-dimensional latent space, while the second maps dyadic audio to these codes, enabling audio-driven generation. A new large-scale dyadic conversation dataset, DyConv, is also introduced. INFP achieves superior performance and natural interaction.

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(grisoon.github.io)
AI

FindMy.py: An All-in-One Python Library for Querying Apple's FindMy Network

2024-12-21

FindMy.py is a Python library providing everything needed to query Apple's FindMy network. It unifies the fragmented Find My ecosystem, offering a cross-platform solution supporting various devices (AirTags, iDevices, etc.) and authentication methods (including SMS and Trusted Device 2FA). It features both async and sync APIs. Currently in Alpha, the API may change, but core functionality is stable.

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(github.com)
Development

Mastodon Jaw Unearthed in New York Backyard

2024-12-22

A New York man's gardening project took an unexpected turn when he discovered what he initially thought were baseballs, but turned out to be giant teeth. These teeth, unearthed in his upstate New York backyard, were identified as belonging to a mastodon. Subsequent excavation by the New York State Museum and SUNY Orange revealed a complete, well-preserved adult mastodon jaw, a toe bone, and a rib fragment. This is the first complete mastodon jaw found in New York in 11 years, offering invaluable insights into the Ice Age ecosystem. The fossils will be carbon-dated and analyzed, with plans to put them on public display in 2025.

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(apnews.com)
Misc mastodon fossil

Product Managers in the Age of AI: New Tools, Same Core Principles

2024-12-22

Despite the trendy term "AI Product Manager," AI hasn't fundamentally changed product management's core: understanding user needs, creating solutions, and defining tasks. AI provides powerful new tools like Large Language Models (LLMs), but PMs still leverage these tools, not build them. The article explains basic LLM concepts (tokens, context windows, prompts) and advises PMs to learn effective prompting, collaborate closely with engineers, and focus on AI's practical value for the product, avoiding trendy additions. In short, AI is a tool, not a replacement; PMs must embrace AI and enhance their skills to thrive in this era.

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(productme.org)
Development Product Management

Netventory: A Fast, Single-Binary Network Scanner

2024-12-22

Netventory is a cross-platform network scanning tool distributed as a single binary, requiring no dependencies and running on Linux, Mac, and Windows. Its sleek terminal interface and powerful features make it accessible to network administrators, security professionals, and anyone needing quick network visibility. Netventory boasts multiple detection methods (TCP, UDP, ARP), port scanning, MAC address resolution, and hostname resolution, with real-time progress tracking and detailed device information. Simple commands enable network auditing, security assessments, and network management tasks.

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(github.com)
Tech network scanning single binary

Irish Rewilding: The Exotic Gardens of Rossdohan Island

2024-12-21

Rossdohan Island in Ireland tells a captivating story of an exotic garden created by a 19th-century surgeon returning from India. The island boasts a unique microclimate, thanks to plantings of Southern Hemisphere species. Despite house fires and changing ownership, these exotic plants persist, forming a unique ecosystem alongside native flora. Today, rewilding efforts face the challenge of preserving this historical legacy while restoring native biodiversity, requiring legislation, policy changes, and public participation.

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(worldsensorium.com)
Misc rewilding exotic species

Meta's Massive Java-to-Kotlin Translation: Conquering Millions of Lines of Code

2024-12-22

Meta has undertaken a multi-year effort to translate its massive Android codebase from Java to Kotlin. This post details how Meta built the Kotlinator, an automation tool, to overcome challenges like slow build speeds and insufficient linters, successfully converting over half of its code. The Kotlinator comprises several phases: preprocessing, headless J2K conversion, postprocessing, and error fixing. Meta also collaborated with JetBrains to improve J2K and open-sourced parts of the process to foster community collaboration. The article highlights null safety handling and various code issues encountered and resolved during the conversion.

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(engineering.fb.com)
Development code migration

ByteDance Open-Sources Monolith, its Recommendation System Framework

2024-12-20

ByteDance has open-sourced Monolith, a deep learning framework for large-scale recommendation modeling. Built on TensorFlow, it supports batch and real-time training and serving. Key features include collisionless embedding tables ensuring unique representation for different ID features, and real-time training for capturing the latest trends and helping users discover new interests. Tutorials and demos are provided to facilitate usage.

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(github.com)
AI Recommendation System

MacKenzie Scott Donates $2 Billion to Charity

2024-12-22

MacKenzie Scott, ex-wife of Amazon founder Jeff Bezos, announced a $2,004,400,000 donation to 199 organizations. These organizations primarily focus on improving economic security and opportunity for vulnerable populations, including affordable housing, job stability, child development, higher education, healthcare, and financial counseling. A portion of the funds also supports human rights and natural resource conservation. Scott stated her desire to further economic mobility and unlock innovation and social benefit by investing in mission-aligned ventures.

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(yieldgiving.com)
Misc philanthropy economic aid social good

Java JEP 483: Ahead-of-Time Class Loading & Linking Boosts Startup Time

2024-12-22

JEP 483 significantly improves Java application startup time by loading and linking application classes ahead of time when the HotSpot JVM starts. It achieves this by monitoring a single application run, storing the loaded and linked forms of all classes in a cache for reuse in subsequent runs. This feature requires no code changes and offers substantial speed improvements for large server applications, such as Spring PetClinic showing a 42% reduction in startup time. While currently a two-step process, future versions will streamline cache creation to a single step and offer more flexible training run configuration.

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(openjdk.org)
Development

Tokenization Problem Proven NP-Complete, Doubling Data Compression Challenges

2024-12-22

A paper published on arXiv proves the NP-completeness of two variants of tokenization, defined as the problem of compressing a dataset to at most δ symbols by either finding a vocabulary directly (direct tokenization) or selecting a sequence of merge operations (bottom-up tokenization). This finding has significant implications for data compression and natural language processing, highlighting the immense challenge of efficiently solving the tokenization problem for large-scale datasets.

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(arxiv.org)
Development NP-complete tokenization data compression

Genesis Engine: A Universal Physics Engine Ushering in a New Era for Robotics and AI

2024-12-22

Genesis is a powerful, general-purpose physics engine and robotics simulation platform capable of simulating a wide range of materials and physical phenomena at unprecedented speeds. It can even generate physically accurate videos and robotic policies from natural language descriptions. For example, it can simulate Sun Wukong performing somersaults, a samurai practicing boxing, and various robots completing complex tasks, with Sim2Real policy transfer capabilities. Currently open-source, the engine will gradually release its generative framework in the future, promising to revolutionize data generation for robotics and AI.

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(genesis-embodied-ai.github.io)
AI AI data generation

Groundbreaking Advance: Safely Compiling C to Rust

2024-12-21

Researchers have developed a novel method for safely compiling C code into Rust. This technique utilizes static analysis and type-directed translation to avoid reliance on Rust's `unsafe` blocks, thus guaranteeing memory safety. The method has been successfully applied to code from the HACL* cryptographic library and EverParse libraries, resulting in an 80,000-line pure Rust verified modern cryptographic library—a first of its kind.

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(arxiv.org)
Development C compilation

Stubborn Feed Readers Bring Down Website

2024-12-22

A blogger experienced website unavailability, tracing it not to carriers or hosting, but to misbehaving feed reader software. These readers ignore best practices, sending unconditional requests and ignoring 429 errors (too many requests), ultimately causing the server to defensively shut down. The blogger resorted to a blog post urging users to check their feed readers, offering a tool called "Feed Reader Score" to analyze reader behavior and resolve the issue.

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(rachelbythebay.com)
Development Feed reader server error website maintenance

Rivet: Run and Scale Realtime Applications with Actors

2024-12-21

Rivet is a platform for building and scaling real-time applications using the Actor model. It features built-in RPC, state, and events, simplifying modern application development. Rivet boasts automatic scaling, edge network deployment, and includes built-in monitoring and data localization capabilities. Powered by Rust, FoundationDB, V8 isolates, and the Deno runtime, it ensures performance and efficiency. Rivet is suitable for collaborative applications, local-first apps, AI agents, game servers, and more.

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(github.com)
Development Actor Model Real-time Applications Cloud Platform
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