From the blog
Visual essays on simulation, modeling, and the infrastructure behind it.
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What Bayesian inference actually does, in pictures
How the system turns your questions into probability distributions — and why that's more useful than a single answer.
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Copy-on-write branching: why forking is free
The data structure that makes it possible to branch a million-row database in microseconds — and why this changes what simulation can be.
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Reading a causal graph: what your model knows
How directed acyclic graphs encode what causes what — and how the system uses them to answer "what if" questions correctly.