 A further question regarding chaos and realism is the following: Is chaos only a feature of our mathematical models or is it a genuine feature of actual systems in our world? This question is well illustrated by a peculiar geometric structure of dissipative chaotic models called a strange attractor, which can form based upon the stretching and folding of trajectories in state space. Strange attractors normally only occupy a subregion of state space, but once a trajectory wanders close enough to the attractor, it is caught near the surface of the attractor for the rest of its future. 