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Life, Learning & Writing

The most popular blog posts about life, learning & writing on Hacker News. 668 posts.

2025
272

Narcolepsy is weird but I didn't notice

There are certain kinds of experiences that most human beings know very little about because a) they are rare, b) they can only be felt from the "inside", i.e., by the people who have them, and c) not all of those people choose to, or are good at, writing

275

The cost of interrupted work (2023)

You’ve likely read lots of blog posts stating that it takes 23 minutes and 15 seconds to get back to work after an interruption, context switch, or meeting. Thus, “do you have five minutes” ends up not only costing those few minutes, but instead about half an hour. But where does that number come from?

281

Spaced repetition memory system (2024)

A spaced-repetition memory system combines the Testing effect and the Spacing effect to enable efficient memorization of many thousands of facts ( Spaced repetition memory systems are extremely efficient ). Some people also use them for a broader set of tasks (see below). Spaced repetition memory systems make memory a…

286

Altoids by the Fistful

"In evolution, a maladaptation is a trait that is (or has become) more harmful than helpful, in contrast with an adaptation, which is more helpful than harmful." I went to Wikipedia to look that up, not a large language model.

289

Babel is why I keep blogging with Emacs

Every time I look at someone’s simple static site generation setup for their blog, I feel a pang of envy. I’m sure I could make a decent blogging engine in 2,000 lines of code, and it would be something I’d understand, be proud over, able to extend, and willing to share with others.

290

The story of my home made pipe organ (2000)

As the course progressed, I discovered that some of this stuff was actually logical, and also kind of fun. I found myself using the piano room just to play around. I never cared much for attempting to play sheet music, but the idea of hitting keys and getting a sound that was sometimes harmonious was strangely…

293

Learning Feynman's Trick for Integrals

Among a few other integral tricks and techniques, Feynman's trick was a strong reason that made me love evaluating integrals, and although the technique itself goes back to Leibniz being commonly known as the Leibniz integral rule, it was Richard Feynman who popularized it, which is why it is also referred to as…

297

Learning Persian with Anki, ChatGPT and YouTube

I’ve been learning Persian (Farsi) for a while now, and I’m using a bunch of tools for it. The central one is certainly Anki, a spaced repetition app to train memory. I’m creating my own never-ending deck of cards, with different types of content, for different purposes. The most frequent type of cards is grammar…