Chaos theory and the complexity sciences have come up in several recent discussions. In one exchange, I found Peter J. Carroll‘s writings to be ill-defined and unclear. In another exchange, different underlying epistemologies were discussed. Richard Metzger and Jason Louv were influenced by contemporary chaos magic: to do rituals and to create sigils in the tradition of Austin Osman Spare. I went in a different direction: studying chaos theory (James Gleick; Edward Lorenz; Benoit Mandelbrot; and others); then reading about how such models can affect your life (e.g. Steven Strogatz’s Sync or Albert-László Barabási’s Linked); and more recently, looking at dynamical systems, mathematics and simulation modelling in the context of financial markets. For me, contemporary chaos magic is but a shadow of the scientific vistas of chaos theory and the complexity sciences.