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Spaced repetition for efficient learning (2019)
Efficient memorization using the spacing effect: literature review of widespread applicability, tips on use & what it’s good for.
New
The latest blog posts to take off on Hacker News. 6,220 posts.
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Researchers achieved 1,270 Wh/L in an anode-free lithium metal battery
[POSTECH, KAIST, and Gyeongsang National University achieve a record-breaking energy density of 1,270 Wh/L]
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My 2026 Open Social Web Predictions
Predictions for 2026 include growth forecasts for various social media platforms, advancements in federated technologies, and anticipated shifts in how …
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When compilers surprise you
Sometimes compilers can surprise and delight even a jaded old engineer like me
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I'm returning my Framework 16
My current laptop is an aging X1 Carbon generation 7, purchased some time in mid 2019. A few months ago a few keys of the keyboard stopped working, specifically the 5, 6, - , = and Delete keys. Sometimes I can get it working again by mashing one of them for a while, but it's not consistent. Given my past experiences…
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Avoid Mini-Frameworks
I work in Google Ads in the past several years. Over time, I've seen one pattern came along again and again, causing endless pain for developers, that is, creating mini-frameworks.
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Google's year in review: areas with research breakthroughs in 2025
This year saw new AI models, transformative products and new breakthroughs in science and robotics.
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The e-scooter isn't new – London was zooming around on Autopeds a century ago
The e-scooters that clutter up pavements may seem like a new thing, but a hundred years ago, there were already people zooming around London on powered scooters.
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Help my website is too small
How can it be a real website if it’s less than 7k?
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Don't Become the Machine
I was recently recommended a YouTube video with the following title: Only a slave quantifies its existence through productivity '''''',,,,,,,,,,,'''''....
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Lessons from the PG&E outage
At Waymo, our mission is to be the world’s most trusted driver. We know trust is built through consistent behavior over time—earned through every mile we drive and every interaction we have with the community. This past Saturday, as a widespread PG&E outage cut power to nearly one-third of San Francisco, our service…
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Unifi Travel Router
Take your UniFi network anywhere. The UniFi Travel Router recreates your full network environment on power up, with flexible uplinks, instant policies, and seamless device connectivity.
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Is Northern Virginia still the least reliable AWS region?
We analyzed if AWS’ N. Virginia region remains the least reliable in 2025. Overview of outages, affected services, and the massive October 20 AWS incident, with insights from StatusGator’s real-time monitoring.
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HTTP Caching, a Refresher
Let’s relearn web caching together.
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Help My c64 caught on fire
Angelo Pesce's homepage & blog on computers, graphics and other things.
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Clock synchronization is a nightmare
Time seems simple. But we engineers lose sleep over something as basic as keeping clocks in sync. Here’s why…
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We replaced H.264 streaming with JPEG screenshots (and it worked better)
Or: How JPEG Screenshots Defeated Our Beautiful H.264 WebCodecs Pipeline
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AI Police Reports: Year in Review
In 2024, EFF wrote our initial blog about what could go wrong when police let AI write police reports. Since then, the technology has proliferated at a disturbing rate. Why? The most popular generative AI tool for writing police reports is Axon’s Draft One, and Axon also happens to be the largest...
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The best things and stuff of 2025
Great things and people that I discovered, learned, read, met, etc. in 2025. No particular ordering is implied. Not everything is new.
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Test, don't just verify
AI-assisted mechnical proving companies are raising funds on billion dollar valuations , new people are trying proof assistants, overwhelmingly Lean, at unprecedented rates. Models achieve fascinating results in competitions previously considered to contain some of the hardest problems in the world, such as IMO, ICPC…
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Instant database clones with PostgreSQL 18
Learn how to clone PostgreSQL databases instantly using reflinks. Turn slow template copies into milliseconds with PostgreSQL 18's new file copy options.
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10 years bootstrapped: €6.5M revenue with a team of 13
€6.5M in revenue, 65% EBIT margins, a full infrastructure migration, and enough features shipped to make your head spin — all with 13 people. Ten years in, still small, still profitable, still having...
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Lotusbail npm package found to be harvesting WhatsApp messages and contacts
Secure the modern software stack with Koi. Gain visibility, context, and real-time protection over extensions, MCPs, and autonomous AI agent endpoints.
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Paperbacks and TikTok
In 1939, Simon & Schuster revolutionized the American publishing industry with the launch of Pocket Books, a line of diminutive volumes (measuring 4 by 6 ... Read more
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The Algebra of Loans in Rust
The heart of Rust borrow-checking is this: when a borrow is taken, and until it expires, access to the borrowed place is restricted. For example you may not read from a place while it is mutably borrowed.
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The Illustrated Transformer
Discussions: Hacker News (65 points, 4 comments), Reddit r/MachineLearning (29 points, 3 comments) Translations: Arabic, Chinese (Simplified) 1, Chinese (Simplified) 2, French 1, French 2, Italian, Japanese, Korean, Persian, Russian, Spanish 1, Spanish 2, Vietnamese Watch: MIT’s Deep Learning State of the Art lecture…
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Things I learnt about passkeys when building passkeybot
Interesting things about passkeys in webauthn
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Archiving Git branches as tags
I have a spicy git alias that allows me to "archive" old git branches by converting them to tags, making them less visible across git tooling. # ~/.gitconfig…
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