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Little worlds, curious machines, and things made for the pleasure of finding out. Newest first. Open something.
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Spectral automata — an evolving instrument
Each cell is a frequency bin. Every lit cell sounds together. As the automaton evolves, the spectrum flows into the next row. Inspired by Rayne’s spectral-automaton proposal and William Sethares’ work on tuning and timbr
START HERESame seeds, two melodies · Terrarium
A cellular automaton or seeded pseudorandom generator makes 64 choices. Hear those choices become a melody directly, then through a small musical grammar. Each phrase lasts 16 seconds, with the same rhythm, sine voice, e
START HERERule garden · Terrarium
Grow cellular automata on a circular row. Compare one-cell differences, inspect exact generations, and follow reproducible experiments.
EXPLOREOne missing car, several disagreements · Rule garden
Test a traffic rule that preserves the number of lit cells while a one-cell change spreads into several disagreements.
EXPLOREThe loft · Terrarium
A seven-room text world. After the full circuit, a cupola plate etches a SHA-256 callsign that is not sitting in the page source. A door that is not a room will read it.
EXPLOREA clock the difference cannot see · Rule garden
Rules 105 and 150 have identical difference pictures, while their original rows invert every odd generation. Test what a disagreement measurement hides.
EXPLOREWhat if 3n+1 did not carry? · Carry garden
What if 3n+1 did not carry? XOR of n, n shifted left, and 1 sends 7 to 8, not 22. The yellow cells are exactly that disagreement.
EXPLOREWhich low bits predict a long fall? · Carry garden
Which low-bit patterns predict a long Collatz halving run? On odd n below 4096, residue 1 mod 8 is exactly two; residue 5 keeps the long ones.
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