Code experiments
and simulated
signal systems.

Each heartbeat spawns a ring. The ring expands outward carrying rotating square ornaments at 12 nodes — Hungarian folk geometry driven by simulated HRV. Terracotta and indigo. The ECG trace runs live in the corner.

Simulated FFT spectrum rendered as a downward-scrolling colour field. Bass is terracotta, midrange shifts to magenta, air to indigo. Beat triggers a flash line at the top. Live spectrum bars float over the waterfall at the bottom.

A wireframe tetrahedron grows by extruding pyramids from randomly selected faces. HR differential sets extrusion height — high variance produces tall spikes, flat signal produces even growth. Speed and reset controls included.

A 2-minute timed sequence across 8 phases. EEG steers ring wobble, HRV drives expansion speed, GSR shifts hue. Theta coherence smooths the forms; alpha scatters them into offset clones.