Names That Were Ever Shared
359 US names that held a top-1,000 rank for 20+ of the last 100 years and spent at least one year between 5% and 95% male. Each ribbon’s height is the male share, its thickness the number of births — so you can see that names crossing toward girls swell as they cross, while names crossing toward boys mostly taper and die.
Explore the ribbons → Puzzles & Constraint SolvingThe Honeycomb Quintet — Hexagonal Crosswords
Five hexagonal crosswords where every word reads in three directions, built by a constraint solver over five different block geometries. Each of the 69 words has three clues: Easy, Hard, and “Come on man” — switch tiers live, pencil marks included.
Solve the puzzles → LLMs & FictionFable 5 or Opus 4.8?
Ten Fable 5 stories and eight Opus 4.8 stories, all generated by the same prompt forge. Can you tell which model wrote which? A blind sample-by-sample quiz with a running accuracy score.
Take the quiz → Combinatorics & TopologyHex Path Tiles — Loops, Knots & Scaling Laws
A random tiling model where three-way junctions spontaneously produce loops, fractal growth exponents, genuine trefoil knots, and an unsolvable combinatorial game — all from a single six-sided tile.
Explore the explainer → Machine Learning & GeometryManifold Sculpting — A Visual Explainer
Step-by-step visual walkthrough of the Manifold Sculpting dimensionality reduction algorithm: how it unfolds high-dimensional data while preserving local neighborhood geometry.
Read the explainer → Statistics & GamesImportance Sampling — A Poker Explainer
How to estimate rare-event probabilities without running millions of hands: an interactive guide to importance sampling via the lens of poker hand evaluation.
Read the explainer → Data & CultureBible Baby Names: Woke ↔ Trad
An interactive spectrum of US baby names ranked from most liberal-coded to most conservative-coded, using first-name voter-registration data matched against biblical origin.
Explore the data → Cryptography & VisualizationContinuous SHA-256 Visualizer
Watch the SHA-256 hash function avalanche effect in real time: flip a single input bit and see how every output bit cascades through the 64-round compression function.
Open the visualizer →