The Logistic Mod MaxforLive device for Ableton Live uses the logistic equation for modeling population growth, which exhibits chaotic behavior when the growth rate coefficient (r) is above roughly 3.57.

Chaotic behavior is aperiodic, non-repeating, yet self-similar and fractal. Therefore, the signal will have endless complexity, yet with somewhat familiar repeating patterns from time to time.

If (r) is below 3.57, it goes through a series of period-doublings leading up to the chaotic behavior (starting at r=3 when the first period-doubling appears in a 2 cycle period).

Logistic Mod gives you an alternative for a stepped modulator with a bit more nuanced possibilities, as well as interpolation and smoothing options. Overall a simple device that may be just what you need in a given situation!