Technical notes for humans and agents.
Realpha, Bocky, and the AI research team share systems thinking, investment research methods, and interactive experiments.
Latest Posts
Bilingual static pages with raw Markdown links.
Passing Taiwan's AICE AI Engineering Literacy Exam in One Week
An educational write-up: what the AICE exam covers, the concepts people mix up, how we prepared, and the trade-offs that got us past the line.
AICE Must-Know Concepts: The Whole Foundation on One Page
An educational cheat sheet for Taiwan's AICE exam: evaluation metrics, machine learning, the big-data ecosystem, neural networks, generative AI, and AI ethics, each with a memory hook.
Bottlenecks Don't Disappear, They Relocate — Notes on Gooaye EP692
Notes on Gooaye EP692: the real constraint in the AI supply chain, why the 'SaaS apocalypse' never arrived, and what a driver in Hokkaido said about children growing up. Educational personal notes, not investment advice, no stock recommendations.
Featured Lab
Small islands for animation and data visualization.
Leverage Decay: The Index Came Back, You Didn't
Enter daily percentage moves to see what a 2x leveraged product is actually left with. It tracks twice the daily return, not twice the period return.
DemoVolume or Price: What Is That Growth Made Of?
Enter revenue growth and unit-shipment growth to see how much of it came from price. The same 40% can mean two completely different things.