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About me
About me Get details
Fool a Neural Network
Add invisible noise to a digit and watch a neural network change its mind — adversarial examples, live in your browser. Get details
Why Bond Prices Fall When Rates Rise
An interactive look at why a bond’s price drops when interest rates go up. Get details
Diversification, low fees, and time equals free money
An interactive look at how holding many investments narrows the range of outcomes, cutting the worst cases while keeping most of the upside, and how fees skim off the top. Get details
Epidemic
A stochastic SIR outbreak on a grid: poke it, tune it, vaccinate it, and watch the curve. Get details
Fun
A small, growing collection of interactive things I’ve built for fun. Get details
Gravity Sandbox
A full-screen 2D n-body gravity playground — set a mass, click to drop it, drag to fling it into orbit. Get details
Hash Avalanche
Watch SHA-256’s avalanche effect: change one character, flip half the bits. Get details
Image Studio
Resize an image to a target file size, crop, rotate, strip metadata, and generate a favicon pack — all privately in your browser. Get details
Rocket Lander
A reinforcement-learning agent lands a rocket. Change gravity, wind, or the pad and watch it cope. Get details
Conway's Game of Life
An interactive, full-screen Conway’s Game of Life. Get details
Where Your Loan Payments Actually Go
An interactive look at how loan payments split between interest and principal — and how paying extra (especially early) saves you money. Get details
Magnetic Field Visualizer
A full-screen sandbox: drop bar magnets, watch their field lines, and let them snap and repel. Get details
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PDF Toolbench
Merge, split, reorder, rotate, redact, sign, and fill PDFs — privately, in your browser. Get details
Double Pendulum
Chaos you can grab: two pendulums start 0.001 radians apart and end up nowhere near each other. Get details