Research · invention · learning
The four-color world of AI, math, and cognition.
4Color.AI is Colin Li's public lab for experiments, essays, and learning trails that connect deep ideas to things students can build.
Featured projects
Experiments and research builds from the lab, starting with MirrorX.
Learning trails
Guided paths that turn research questions into concepts students can inspect and build from.
From graph coloring to AI systems
A learning trail from the Four Color Theorem to constraint solving, representation, and AI system design.
OpenIntermediateHow agents reason, reflect, and coordinate
A learning trail for understanding agent behavior through memory, reflection, communication, and coordination.
OpenIntermediateIs logical thinking just a form of harnessed randomness?
A learning trail asking whether reasoning, search, and creativity depend on controlled randomness.
OpenField notes
Short essays on AI systems, mathematics, cognition, and the boundaries between them.
Built by Colin Li
Math + CS founder, builder of CodingMind Academy and JCIA, exploring AI-native learning and agent societies through public experiments.