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Eight Portions


Ryan's personal blog on data science, personal projects, and various related topics

Eight Portions


Ryan's personal blog on data science, personal projects, and various related topics

Why You Should Strive for Lower Leverage Work

A counterintuitive approach to maximizing your impact in knowledge work

Posted on July 14, 2025

Everyone talks about finding “high-leverage” work. Build tools that automate tasks. Write code that gets reused. Create processes that scale. These are all great things that can help you land more impact with your finite time. But if we think... [Read More]

Screenshots are not proof of anything

A gentle reminder that screenshots are so easy to spoof that they mean absolutely nothing

Posted on July 7, 2024

Billions of dollars have been made and lost in recent months based on screenshots of Roaring Kitty’s account balances1. These screenshots were widely circulated and discussed, yet they could have easily been doctored. Some examples can be found here, here,... [Read More]

What is the true depreciation cost of driving one mile?

A multivariate analysis of used car prices

Posted on December 18, 2022

Many factors affect a vehicle’s market value but two of the most important factors are vehicle age and mileage. The average American vehicle travels about 14,000 miles per year, per the 2019 FHA data. Most publicly available depreciation estimates are... [Read More]

Building a water tank level monitor

4-20mA sensor, Arduino nano, MQTT messaging, and monitoring dashboard

Posted on July 1, 2022

We recently moved into a rural home running on well water. The well pumps groundwater into a storage tank, which holds about 5,000 gallons of water. However, due in large part to the historic drought in California our well runs... [Read More]

Building an automatic chicken coop door controller

Automating chicken ownership

Posted on May 31, 2020

My wife and I got three backyard chickens a few months ago. There was a lot of setup work initially, but we eventually settled into a routine that didn’t require much daily work. One pain point was waking up early... [Read More]
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Ryan Lee  •  2025  •  eightportions.com

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