Sam's Blog

About Trip is South Korea (Seoul and Jeju) from 2025-11-07 -> 2025-11-21.

What I learned this week Software Business/Finance Overregulation, where’s the happyMiddle ground?

What I learned this week Software Wifi location Wifi aware Business/Finance Interesting Links Korean maps Math/Stats Travel Other YMCA and low income housing

What I learned this week Software Running your own ISP Business/Finance 10% of meta revenue is from scams Lets go, no more driving Interesting Links Truck desk Biggest piece of glass Math/Stats Travel Other 4/19 revolution Steinbeck I’d like to read Cool…

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 preem…

What I learned this week Software Worked through these, pretty fun!

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 cal…

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…

A new project You’re setting off on a journey to build a new {table, whole series of tables, dashboard, predictive model, pick your adventure book, etc…}.

This is a collection of semi-coherent, random thoughts I have on “gambling”.

Case Statements: A common occurrence when writing SQL is needing to bucket some data and look at how it is distributed across said buckets.

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 pred…

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.

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

The book This will serve to store notes/insights/thoughts about The Goal by Eliyahu M.

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…

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 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 Intere…

What I learned this week Officially one year of doing this!

The Robinhood gambling factory Robinhood has a nice mobile experience, they have good products/deals, and they also have a credit card.

What I learned this week Software Business/Finance Poly Market Arbing Uh Oh Kodak Leslie’s has some… uh… debt obligations Interesting Links Clams in poland Math/Stats Travel Other Alcohol Creatine in cycling

Reading I tend to put my fingers under the right page of a book in a rush to get to the next page.

a The book This will serve to store notes/insights/thoughts about Letters to a Young Poet Quotes Xix- solitude is not merely a matter of being alone.

What I learned this week Software tor history Business/Finance Germany exit taxes…incentives… Interesting Links Oops a little transparency goes a long way Math/Stats Travel Other Waist to height ratio better than bmi?

What I learned this week Software Ubuntu is an ancient African word meaning ‘humanity to others’ Ruining postgres VC!

What I learned this week Software Setting up a new mac Addded Raycast to my Mac and it’s quite nice Quick start mcp Zip Bomb server protection don’t just red docs, also talk to them Interesting, pretty undeniable use case for LLMs that’s effective zprof L…

What I learned this week Software Cloudflare Tunnels interesting to check out How a screen works Local LLM Business/Finance Is this a “we are not a monopoly” play?

What I learned this week Software Put Doom on a Peloton: Found the Wifi Debugging screen Downloaded Android SDK Platform-Tools and used adb to connect and inspect the android tablet. .

What I learned this week Software What’s security for anyway?

What I learned this week Software Bad measures What NPM Fund means View ipv4/v6 Route tables: netstat -r Typically for ISPs give out more than a /64 for ipv6 so people can have multiple networks (/60 or /56 possibly) /64 only allows for one ipv6 network so

What I learned this week Software HyperLogLog in Redshift OLTP Snowflake In Clickhouse primary keys do not represent a unique row, it represents the sort order of how data is stored in the file system for merge tree tables Cool Animations Business/Finance…

The agenda… Today we’re digging into the curious case of “Primary Keys” in modern data warehouses (think Redshift, BigQuery, Snowflake).

The book This will serve to store notes/insights/thoughts about Optimizing Oracle Performance book written around Oracle Version 9 Quotes Preface xix- In my experience, diagnosis is where people usually mess up.

What I learned this week The for Loop Software Business/Finance Free cash flow Interesting Links I just don’t get it Politics!

Winning Every Time I’m going to summarize arbitrage sports betting.

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 st…

What I learned this week Software Duck Lake!

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

The book This will serve to store notes/insights/thoughts about Time Enough for Love Quotes 8- A society that gets rid of all the trouble makers goes downhill 10- The most sophisticated machine the human mind can build has in it the limitations of the hum…

What I learned this week Software Business/Finance Mcdonalds data everything’s a $100 Interesting daily econ tidbits 364 Walmarts in China!?

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.

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.

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.

Japan Travel Log This trip was the best/most impactful traveling experience I’ve had as an adult.

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!

What I learned this week Software #!

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.

That query bank should be a semantic layer I’ve done it myself: “Oh we should just cache all these commonly used queries somewhere central, so we always have a nice definition for someone to use.”

Found myself giving a bit of advice to new cyclists, so I figured I’d store my thoughts here so I can share it.

What I learned this week Software Exploring UV You can run a tool in an ephemeral environment uvx pycowsay 'hello world!'