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Life, Learning & Writing

The most popular blog posts about life, learning & writing on Hacker News. 7,746 posts.

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6694

A dictionary of single-letter variable names

Haskell’s expressive type system means that type signatures can carry a lot of information. Haskell’s polymorphism means that you sometimes write functions that work across an enormous range of types, and are left wondering “what do I actually call my variables?”. It is often the case that there’s nothing to say…

6697

Sysop Chat

Back in mid-90s before anyone I knew had an Internet connection, a few of us had modems and would use them to call bulletin board systems via the phone line. On these systems what to me seemed the main thing was discussions and chat. For the first time I could talk to other like-minded people, and just being able to…

6699

Dropbox keeps threatening to delete my files

For the past two years, I’ve been on the receiving end of a passive aggressive win-back campaign from Dropbox. The feud originally started when I migrated away from Dropbox and hence canceled my subscription while leaving them saddled with over a terabyte of my data to carry forever, like a camel in the digital…

6700

Eastern European Guide to Writing Reference Letters

Excruciating. One phrase I often use to describe what it's like to read reference letters for Eastern European applicants to PhD and Master's programs in Cambridge. Even objectively outstanding students often receive dull, short, factual, almost negative-sounding reference letters. This is a result of (A)...

6713

A Healthy Diet For The Mind

I've been enjoying teaching Intelligent Systems again this semester. A big part of the fun is re-reading old papers. I had a lot of fun re-reading and thinking about the ideas in William Clancey 's classic paper, Heuristic Classification . Long-time readers may recall me mentioning this paper in a long-ago post about…

6717

My “Investment Mindset”

The year was 2007. I was a college student attending a 24-hour hackathon where we had had to build something on top of live trucking data. We were given an API that sent GPS and other metadata for 100 trucks roaming across Europe, the data updating every five seconds.