Deterministic chaos is a phenomenon seen in nonlinear dynamical systems where the outcome is highly sensitive to initial conditions. It occurs in systems that rely on deterministic rules and demonstrate chaotic behaviour. In these systems, a small change in initial conditions can dramatically alter the long-term behaviour of the system, leading to unpredictable and highly complex outcomes known as chaotic attractors. The term was first coined in the 1970's and since then, deterministic chaos has become an important field of study in mathematics, physics, and many other scientific disciplines.

See also: antifragile, attractor, emergence, evolutionary computing, self-organization