13921
Transformers from Scratch
Repository for personal website
Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 49,212 posts.
13922
Powerchair: A dad hacks a wheelchair for his disabled 2-year-old son
We wanted Alejandro to have a power wheelchair. We wanted him to be able to move through the world by his own volition and it’s clear that the ability to independently explore his environment is important for his cognitive development on multiple levels. We tried going through the typical process of obtaining a power…
13923
Memory Management in Python
To speed-up memory operations and reduce fragmentation Python uses a special manager on top of the general-purpose allocator, called PyMalloc.
13924
How to Manage Connections Efficiently in Postgres, or Any Database
Hitting the limit for maximum allowed connections is a common operational problem in Postgres. Here we look at a few techniques for managing connections and making efficient use of those that are available.
13925
Doom engine code review
Before studying the iPhone version, it was important for me to understand how Doom engine WAS performing rendition back in 1993. After all the OpenGL port must reuse the same data from the WAD archive. Here are my notes about Doom 1993 renderer, maybe it will help someone to dive in. January 13th, 2010 : Reddit…
13926
Visualizing Git Concepts with D3
This website is designed to help you understand some basic git concepts visually. This is my first attempt at using both SVG and D3. I hope it is helpful to you.
13927
Building a Poor Man’s Deep Learning Camera in Python
Streaming a webcam to a deep learning model the hacker’s way
13928
Safe VSP – 30 year old Commodore 64 bug demystified (2013)
I contributed this one-filer to the C64 Demo compo at Datastorm 2013 . It ended up on 7th place, which I consider quite good for a technical proof of concept.
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13930
In defense of cryptocurrency
Last week a group of technologists, including Bruce Schneier, sent a letter to Congress outlining their concerns around cryptocurrency and urging Congress to regulate the space. Now let me be the f…
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Should small Rust structs be passed by-copy or by-borrow? (2019)
Benchmarking Rust to determine if small structs should be passed by-copy or by-value.
13935
How I use AI (Oct 2026)
I document how I use AI, one year after my first writeup. Everything's completely different.
13936
The war on gifted education
Why the landslide loss for San Francisco's school board is a victory for American meritocracy
13937
Did GoogleAI just snooker one of Silicon Valley’s sharpest minds?
Clever Hans and how corporate AI plays the media, in 2022
13938
8 months of OCaml after 8 years of Haskell in production (2023)
Dmitrii Kovanikov's Personas Web Space
13939
The Moral Economy of the Shire
Who paid for this? There’s a certain meme that I see making the rounds on Facebook every so often about the bucolic nature of life in the Shire, from Tolkien’s The Hobbit and The Lord o…
13940
Stack Overflow Culture
This blog post was most directly provoked by this tweet from my friend Rob Conery, explaining why he’s giving up contributing on Stack Overflow. However, it’s been a long time coming. A…
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13942
How bad are things?
One “advantage” of working in psychiatry is getting a window into an otherwise invisible world of really miserable people. I work in a wealthy, mostly-white college town consistently ra…
13943
High beef prices and the destruction of independent cattle ranching
Agricultural economists manipulated data to block Congress from acting on high beef prices and the destruction of independent cattle ranching. Why? Because they think monopolies are good.
13944
Steve Ballmer's incorrect binary search interview question
In this short video Steve Ballmer talks about a puzzle question he would ask candidates interviewing at Microsoft. Solving it is based on b...
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PhysicsForums and the Dead Internet Theory
An exposé no one will read, about the widespread falsification of user posts in PhysicsForums, a scientific community founded in 2001. This is a microcosm of the death of the human-written Internet.
13947
It's Never Too Late to Learn Guitar
While many musicians start learning the guitar at an early age, there are also many excellent guitar players who start out in their 30s, 40s and even 50s.
13948
My Talk at Microsoft
It is now public knowledge that on 4 September 2019 I gave a talk at the Microsoft campus in Redmond. I was invited and I accepted. The report of this has led to a certain amount of speculation and rumor.
13949
I Worked for a Criminal Organization
That time I was employed by a criminal organization I was employed by Micfo for several months, I quickly determined that they were shady and invovled in illegal practices. I did not quit because of that, I quit because I felt unwanted, by HR and Management. Later they would ask me to come back. This is the full…
13950
Implementing Cosine in C from Scratch (2020)
How does the math library's trigonometric function work?