7CTOs - Combining Software Engineering and Data Science
A talk I gave before LLMs, COVID, and my second kid — back when recurrent neural nets were the exciting thing.
~/writing
Musings, mostly
written at night.
Ryan Rusnak on software, logistics, and whatever else comes to mind.
2026
06 posts
The Sound of Root Two
The math behind why some notes sound good together and others don't — clean integer ratios versus the irrational number our ears hate most.
You need three things to start a company
Everyone in the bar had the best idea. Ideas are the easy part — you also need expertise and data.
Why Airspace
In 2015 I wanted two things from my work: something meaningful and something super hard. Then I met Nick.
The Southwest Airlines Story
From a TI-82 in middle school to the day our ops team turned a plane around to save a kid in Baltimore.
The Kidney Story
A stranger called to ask if I had delivered a kidney to his friend. I had no idea — and that is the part that stays with me.
2019
01 posts
The Goal of Writing - 2019
A snapshot from January 2019: a goal to write weekly, no plan to do it, and a lot of youthful optimism.
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