 Arguably, one can say that Aristotle was already aware of something similar to what we now call sensitive dependence. Writing about methodology and epistemology, he observed that “the least initial deviation from the truth is multiplied later a thousandfold” (Aristotle OTH, 271b8). Nevertheless, thinking about how small disturbances might grow explosively to produce substantial effects on a physical system’s behavior became a phenomenon of ever intensifying investigation beginning with a famous paper by Edward Lorenz (1963.) He noted that a particular meteorological model could exhibit exquisitely sensitive dependence on small changes in initial conditions. French mathematician Jacques Hadamard had already developed the framework for partial differential equations exhibiting both continuous and discontinuous dependence on initial conditions by 1922. Any equations exhibiting sensitive but continuous dependence are well-posed problems under his framework; however, he raised the possibility that any solution to equations for a physical system exhibiting such sensitive dependence could indicate that the target system obeyed no laws (Hadamard 1922, p. 38). Lorenz’s pioneering work demonstrated that such sensitive dependence was not a matter of mathematical misdescription; rather, there was something interesting in the mathematical model exhibiting chaos. Moreover, Lorenz’s and subsequent work indicated that there seemed to be no issue of the law-likeness of target systems whose models exhibited sensitive dependence. 