The Lorenz Attractor

Chaos theory is an odd thing.  One would think it implies randomness...but it doesn't.  It is actually a deterministic system (i.e., no randomness).  Below is something called the Lorenz attractor.  This beautiful image was named after the MIT meteorologist Edward Lorenz  who I think is credited with the discovery of chaos theory (or at least one of the discoverers).  This plot is where the term "butterfly effect" came from.  Unfortunately, if you google butterfly effect, the main search results are those weird movies.  Enjoy the beauty.