A discrete-time dynamical system introduced by Michel Hénon. x(t+1) = 1 - a * x(t)² + y(t) y(t+1) = b * x(t)
The classic parameters (a=1.4, b=0.3) produce a strange attractor with a fractal dimension. The ASCII visualization accumulates density over time: darker, fainter cells represent regions visited infrequently, while bright orange cells represent the highly frequented "spine" of the attractor.