r/place
A shared 2D pixel canvas hosted by Reddit during April Fools' events. Each user could place one pixel at a time, drawn from a constrained colour palette, with a cooldown between placements.
Macro-level outputs unpredictable from the microscopic rules.
Distributed knowledge production and problem-solving across many agents.
Small parameter or input changes produce disproportionate output shifts.
The system operates at a boundary between order and disorder (edge of chaos).
Distinct scales of organisation visible (micro → macro levels).
Qualitative regime shifts at thresholds in a control parameter.
Stable configurations in state space that the system converges towards.
History and prior states condition future possibilities.
Unbounded generation of novelty over time.