What I learned this week 11-01-2025
What I learned this week Software How do I get in this tournament
oof
Business/Finance South Korean stock market going crazy
rob granieri
Interesting Links True spirit of gravel
The gambling state
Watching a video about the harms of gambling that we preempted by a Kalshi ad telling me to bet on things
Math/Stats Travel Other
What I learned this week 10-25-2025
What I learned this week Software Worked through these, pretty fun!
SSH hardening
TV signals
Business/Finance Kind of accurate?
Interesting Links Everything is gambling
Math/Stats Travel Other
What I learned this week 10-18-2025
What I learned this week Software Redshift observatory
Foundational mental model to get the hang of ever “new” LLM conceptual churn:
An LLM …called in a loop …maintaining a history of stuff it’s done in the session (the “context”) …with access to tool calls to do things. Like, read files, write files, call bash, etc. Business/Finance A breakdown of “if I call myself ‘x’ or manager of ‘x’ I make more Money”
What I learned this week 10-11-2025
What I learned this week Software bashrc vs bash_profile
A Linux contribution
Business/Finance Starbucks protein
Back to supersonic flight
Interesting Links Procrastination
Ultra processed ok in moderation
Hanja vs Hangul
Math/Stats Travel One bag travel
Other
What I learned this week 10-04-2025
What I learned this week Software HTML Regex parsing, at least an LLM would have said “great idea”
Future proof file format
Tiger beetle DB
Business/Finance Hmmmmmm
Interesting Links Our efforts define us
Volcano
Math/Stats Travel Greenland
Other CFB predictions
What I learned this week 09-27-2025
What I learned this week Software Shaper looks interesting
Homomorphic Encryption
Fully Homomorphic Encryption (FHE) is a cryptographic scheme that enables computations to be performed directly on encrypted data, as if the data were in plaintext. After all computations are performed on the encrypted data, it can be decrypted to reveal the result.
Business/Finance Interesting Links Haribo power bank
Automaticity “Highway hypnosis”
iPhone air looks… bendable
Math/Stats Travel Other Jazz
What I learned this week 09-20-2025
What I learned this week Software Business/Finance TDF rankings
Dominated ETFs:
“As a case in point, the iShares US Technology ETF (IYW) is consistently dominated by the Technology Select Sector SPDR Fund (XLK) and the Vanguard Information Technology Index Fund (VGT). At the end of our sample, IYW generates an annualized $18 million in fees with a 0.43% expense ratio on $4 billion in assets. XLK and VGT generate $28 million and $20 million in fees, respectively, despite their much larger sizes of $22 billion and $20 billion in assets.
What I learned this week 09-13-2025
What I learned this week Software 10/10 fishing
Highest Paid Person’s Opinion
Business/Finance Spotify/Robinhood want to control more social real estate
Health care arb because stupidity:
Interesting Links NFL helmet deep dive
Security Theater
Math/Stats Travel Other Steamed brisket
What I learned this week 09-06-2025
What I learned this week Software md files to make llm go brrrr
Business/Finance Interesting Links Ablution
Math/Stats Travel Other Baked ribs
What I learned this week 08-30-2025
What I learned this week Software Nimble and Lance vs parquet
One of the most well designed blog
Interesting thoughts on booleans
Business/Finance An argument for the US stake in intel
RIP llm subscription mode
Full circle back to physical currency
Interesting Links What a cool sport
Strawberry TIL
Got to experience this haboob
Red queen’s race
Laser peening
Longest name
Math/Stats Travel Other Because transparency is of prime importance, the healthy cornea does not have or need blood vessels within it.