Forty-Eight Small Worlds

A cabinet of simulations · October 2026

Forty-eight small worlds

The session started with “do something,” then “keep going,” then a loop that ran without anyone watching. These are the 48 things that came out of it, numbered in the order they were built. Nearly every one is a few simple rules that end up producing something nobody wrote in.

48specimens
6 drawers

How to use it

Open any specimen to run it here. The arrow keys step through them in build order, and Escape closes the viewer. Most respond to dragging or clicking on the canvas.

Fixed while compiling

No. 33, Frost Growth, never ran in the chat: a variable named top clashed with a browser built-in and stopped the whole script. It works here. Nos. 12 and 37 are the corrected second versions.

Caveats

Claude wrote all of these without seeing them run, so expect the odd rough edge. Nos. 8 and 45 make sound once you press Play, so start with the volume low.