Experiments

An interactive essay on the geometry, mechanism, and simulation of back control. Five simultaneous battles, each with its own toolbox.

Visualize belt progression and dropout statistics in BJJ.

Estimate the center of mass of a dot cluster. 10 rounds, Chebyshev scoring, timer penalty, lowest score wins.

It's always the same: improve your relative position. Both players, simultaneously.

Round timer with configurable duration, rest, and rounds. 3-2-1 countdown, beep cues, auto-cycle.

Hand-drawn diagrams and sketches collected over years of training.

The entry point to grappling isn't a position. It's a psychological state.

CO₂ tolerance, the Bohr Effect, and why the exhale is the universal key. Canvas breathing animation.

What does "flow" actually mean in sparring? A practitioner model for intensity, problem density, and the science behind it.

The horseshoe model applied to grappling culture. Both extremes are neighbors — and neither knows it.

Browse and read all concepts organized by category. Minimalist reading interface.

Interactive competition statistics across BJJ, grappling, and MMA. Attempt rates, finish breakdowns, technique rankings, and meta trends.