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Data Science

Data Science allows us to extract meaning from and interpret data.

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I read Anthropic's S-1 next to its partners' 10-Qs. Here's what matches and what's missing

I read Anthropic's S-1 next to its partners' 10-Qs. Here's what matches and what's missing

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4 min read
Spatial Cross-Validation When the Data Won’t Spread Out

Spatial Cross-Validation When the Data Won’t Spread Out

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5 min read
Grokking: Why Neural Networks Suddenly Generalise Long After Memorising

Grokking: Why Neural Networks Suddenly Generalise Long After Memorising

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9 min read
My PEAD backtest's edge fell from 1.21% to 0.25% per trade once I checked announcement times against SEC filings

My PEAD backtest's edge fell from 1.21% to 0.25% per trade once I checked announcement times against SEC filings

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8 min read
Julia Explained: The Language Built for Speed and Science

Julia Explained: The Language Built for Speed and Science

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2 min read
When tennis Elo and the market disagree: build a research shortlist, not a magic pick

When tennis Elo and the market disagree: build a research shortlist, not a magic pick

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5 min read
Replicating a PyPI dependency-pinning number: the published 29% exact-pin share drops to 9-17% on fresh latest-release data

Replicating a PyPI dependency-pinning number: the published 29% exact-pin share drops to 9-17% on fresh latest-release data

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5 min read
I Joined an AI Competition With 7 Days Left. 940 Teams Had the Same Score.

I Joined an AI Competition With 7 Days Left. 940 Teams Had the Same Score.

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6 min read
Link posts got 1.56x the views on X in week one: the post-age check

Link posts got 1.56x the views on X in week one: the post-age check

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4 min read
Build a small job-market tracker with Google Jobs, Python and SQLite

Build a small job-market tracker with Google Jobs, Python and SQLite

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6 min read
Which brands do AI assistants recommend? 200 answers from ChatGPT, Perplexity, Gemini and Google

Which brands do AI assistants recommend? 200 answers from ChatGPT, Perplexity, Gemini and Google

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5 min read
An economic calendar built only from official sources: the Fed, ECB, BLS, ONS and more in one table

An economic calendar built only from official sources: the Fed, ECB, BLS, ONS and more in one table

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2 min read
What 625,987 NHTSA complaints look like once you count them one way

What 625,987 NHTSA complaints look like once you count them one way

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2 min read
Our stock score ranked stocks backwards on the one test that mattered

Our stock score ranked stocks backwards on the one test that mattered

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2 min read
A Good Fill Price. What About the Fee?

A Good Fill Price. What About the Fee?

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5 min read
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