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Five Kinds of Nondeterminism

February 19, 2025 Five Kinds of Nondeterminism Or four kinds, or six kinds, I'm not picky about how you count them No newsletter next week, I'm teaching a TLA+ workshop. Speaking of which: I spend a lot of time thinking about formal methods (and TLA+ specifically) because it's where the source of almost all my revenue. But I don't share most of the details because 90% of my readers don't use FM and never will. I think it's more interesting to talk about ideas from FM that would be useful to

Lynx Browser: The Land That Time Revived (2022)

"If you don't perceive using the Internet in the 2020s to be a constant fight, you have absolutely no online privacy whatsoever." Lynx browser, browsing the post Cyber Freedom: No Gain Without Pain, from my Neocities site Backlit. It might look scarily primitive at first glance, but Lynx browser - a product as old as the World Wide Web itself - could not be more of a friend. And neither could it be more relevant amid the surveillance dystopia of the 2020s. If you find it hard to keep up with t

Helpcare AI (YC F24) Is Hiring Full Stack Engineer

Helpcare AI is looking for a Full Stack Engineers. Ideal Candidate: - Worked at an early-stage startup (pre-seed, seed, series A) - 5yrs of full-stack experience. (python, react preferred, open to other) - Some experience with LLM / Agentic Applications. - Great opportunity for remote candidates - $120,000 / yr. - US-CAN-LATAM Timezones Preferred (open to others). Tech Stack: - Python, React, Fast API, Supabase Who we are: - Mission to improve the world's capacity for care - Respectful, inte

Best YouTube Channels for Free Workouts in 2025

The gym isn’t the solution for everyone. A gym membership can be expensive and it can be tough to find enough time to commute to and from the gym for regular workouts. With online fitness training and some investment in home exercise equipment, you can have a killer workout setup at home. Whether you're a beginner or a fitness enthusiast, working out at home offers a variety of benefits, and along with those come the challenges. These are the best YouTube channels that will help you get the mos

Mere weeks after Starship’s breakup, the vehicle may soon fly again

A little over a month after SpaceX's large Starship launch ended in an explosion over several Caribbean islands, the company is preparing its next rocket for a test flight. According to a notice posted by the Federal Aviation Administration, the eighth test flight of the Starship vehicle could take place as early as February 26 from the Starbase launch site in South Texas. The launch window extends from 5:30 pm local time (23:30 UTC) to 7:09 pm (01:09 UTC). Company sources confirmed that this

SpaceX engineers brought on at FAA after probationary employees were fired

Engineers who work for Elon Musk’s SpaceX have been brought on as senior advisers to the acting administrator of the Federal Aviation Administration (FAA), sources tell WIRED. On Sunday, Sean Duffy, secretary of the Department of Transportation, which oversees the FAA, announced in a post on X that SpaceX engineers would be visiting the Air Traffic Control System Command Center in Virginia to take what he positioned as a tour. “The safety of air travel is a nonpartisan matter,” Musk replied. “S

Netflix Plans to Spend $1 Billion Making Content in Mexico Over the Next 4 Years

Streaming juggernaut Netflix plans to spend $1 billion on film and TV production in Mexico over the next four years. CEO Ted Sarandos announced the plan Thursday during a press conference with Mexico's president, Claudia Sheinbaum. The injection of capital could fund 20 productions per year, on average. During Thursday's event, Netflix also announced a $2 million investment in Mexico City's Churubusco Studios to improve the facilities. The goal is to strengthen the national film industry. “Our

Vanguard Exiles launches on March 11 as next game from Magic creator Richard Garfield

Vanguard Exiles, the next game by Magic: The Gathering creator Richard Garfield, will launch into early access on Steam on March 11. The digital board game comes from Australian game developer The Tea Division, and it’s designed in association with Garfield. The title is an innovative auto battler with a redefined take on the genre. The devs say to prepare yourself for a competitive strategy gameplay experience unlike any other, offering new scenarios in each round ensuring no two turns are eve

RT64: N64 graphics renderer in emulators and native ports

RT64 RT64 is an N64 graphics renderer for playing games with enhancements in emulators and native ports. Work in Progress Emulator Support (Plugin) and Ray Tracing (RT) are not available in this repository yet. This repository has been made public to provide a working implementation to native ports that wish to use RT64 as their renderer. Development of these features is still ongoing and will be added to this repository when they're ready. Thank you for your patience! Features available

8 Best Projectors According to Our Reviewers (2025)

There's nothing like watching your favorite films in a dark room on a massive screen. For that authentic movie theater experience at home, you’ll need a projector (and a popcorn maker). You used to have to shell out more than $10,000 to get an excellent projected experience, but you can now get a massive, beautiful picture for less than the cost of a flagship TV. Projectors are also much more portable and easier to set up than ever. And if you have space, there are excellent pocket-sized and sh

Mexico issues legal threat to Google

John David Mercer-USA TODAY Sports On Jan. 20, United States President Donald Trump signed an executive order renaming the “Gulf of Mexico” to “Gulf of America.” Last week, Google Maps officially changed the name of the gulf on its maps, sparking a flurry of memes and conversation on social media, and Mexico is now threatening legal action if they don’t change it back. In a press conference on Monday, Mexican President Claudia Sheinbaum said that Mexico will sue Google if the company does not

Want an electric bike? The HiBoy EX6 is $805 off!

This is not the type of stuff we usually cover, but I couldn’t ignore this offer when it came across my desk. Electric bikes offer commuters a new form of easy, clean, and fun transportation, but they tend to be a bit pricier than I would hope. How about getting an $805 discount on the HiBoy EX6 Electric Bike? This brings the price down to a much more reasonable $774.99. Get the HiBoy EX6 Electric Bike for just $774.99 ($805 off) This offer is available from Best Buy. The discount is applied au

I built a large language model "from scratch"

A developer's journey through building an LLM from scratch, sharing key insights about tokenization, training, and the learning process of mastering AI fundamentals. Building a large language model from scratch# I’m a machine learning / A.I. hobbyist. The technologies fascinate me, and I can’t seem to learn enough about them. Sebastian Raschka’s book, Build a Large Language Model (From Scratch) caught my eye. I don’t recall how I stumbled on it, but I found it when it was still in early access

"Ensuring Accountability for All Agencies" – Executive Order

Presidential Actions Ensuring Accountability for All Agencies By the authority vested in me as President by the Constitution and the laws of the United States of America, it is hereby ordered: Section 1. Policy and Purpose. The Constitution vests all executive power in the President and charges him with faithfully executing the laws. Since it would be impossible for the President to single-handedly perform all the executive business of the Federal Government, the Constitution also provides for

These Are the SpaceX Engineers Already Working Inside the FAA

Engineers who work for Elon Musk’s SpaceX have been brought on as senior advisers to the acting administrator of the Federal Aviation Administration (FAA), sources tell WIRED. On Sunday, Sean Duffy, secretary of the Department of Transportation, which oversees the FAA, announced in a post on X that SpaceX engineers would be visiting the Air Traffic Control System Command Center in Virginia to take what he positioned as a tour. “The safety of air travel is a nonpartisan matter,” Musk replied. “S

Man Wakes Up, Finds That Large Chunk of SpaceX Rocket Has Crashed Into His Garden

A Polish man named Adam Borucki made an unusual discovery in his backyard after waking up one day: the purported remains of a second stage of a SpaceX Falcon 9 rocket. As the UK tabloid The Daily Mail reports, Borucki reported the "large object about [five by three feet] in size" to the local police. "We are investigating how the object ended up in this location, but the important thing is that no one was harmed," police spokesman Andrzej Borowiak told the tabloid. It seems likely that the ob