What I learned this week Software Race Conditions I like this definition of atomic: The capability of performing an uninterrupted update with valid data before and after the update and the data cannot be observed by another observer in any intermediate state it may take on during the update. It may be a single bit or it may be an entire database. S/O ACID! Semaphore I was unaware of SAVEPOINT and ROLLBACK TO

What I learned this week Software Duck Lake! Dangers of a certain compiler flag Complete CS Education, I wonder how many LLMs have trained on this A progressive JPEG will actually show the entire image right away, the image will load in at full size looking pixelated and will become more clear as it loads. O(n^2) is the sweet spot of badly scaling algorithms Business/Finance Interesting Links Poland Economy larger than I thought

What I learned this week Software Nice IDE for Postgres FSRS, I want to do create flash cards from the section of the blog Building on LLMs Handbook Implementing Search Business/Finance Interesting Links HDR Math/Stats Travel Other

What I learned this week Software Business/Finance Mcdonalds data everything’s a $100 Interesting daily econ tidbits 364 Walmarts in China!? Turns out there are Walmart’s in 19 countries, and 2.1MM associates wow Interesting Links Math/Stats Travel Other

What I learned this week Software Linux Tools 0 Deps Can’t say I 100% agree but can’t say I 100% disagree, there’s probably some happy medium here on when to use deps. JSON dictionary Infra at Palantir Business/Finance Seagull management Interesting Links Appearing confidant Observations from watching people I like how this is written but I don’t think we have some omniscient writer who can quickly define a person 100% correctly Math/Stats Travel Other

What I learned this week Software Docker relies on Linux kernels, which means that macOS and Windows cannot run Docker natively without some additional steps. Each operating system has its own solution for running Docker. For example, Docker for Mac uses under the hood actually a virtual machine that runs a Linux instance, within which Docker operates. It seems you can get a shell on this VM via: docker run -it –privileged –pid=host debian nsenter -t 1 -m -u -n -i sh

What I learned this week Software T-Strings Business/Finance On the ridiculousness of the tax code Interesting Links Math/Stats Travel Spent the week in Japan, had an amazing time. Will record what I did in the travel section. Other Do a trip with friends at least once per year. Biggest lesson from Rob who I rode with in Kiryu.

What I learned this week Software Unpixelate PG wire Business/Finance Battery powered profits not quite there Interesting Links Math/Stats Travel Flew to Japan, and now I’m in Ota City, Japan! Other Furthest Time zones Mailing Potatoes

What I learned this week Software #! - interesting/tidbits https://www.openwall.com/lists/oss-security/2025/04/01/1 Billion lol attack Old article on airbnb photo loading Business/Finance Should we make advertising illegal? Interesting Links Math/Stats Travel Other Posting this from Tokyo after 27 hours of travel #dedication https://youtu.be/ADXX4fmWHbo?si=ce1t10JYyMbK3TPU

What I learned this week Downloading games from the radio it’s cool to read about these times as I’ve never gotten to experience this. April Fools Software Business/Finance Google Finance’s broken feature Interesting Links Math/Stats Travel Other Hilarious post on a vary volatile compound Awesome Chess Project