This episode features Part 2 of a stimulating discussion between Dr. Nataraj (host) and Prof. Giuseppe Rega.  Prof. Rega is a Professor Emeritus at Sapienza University in Rome, Italy, and is a prolific and noted scholar with many publications in nonlinear dynamics.  His work ranges over a number of diverse areas including structural mechanics, controls and exploiting nonlinearity.  In this episode, we discuss the history of nonlinear dynamics, the current state of the art as well as possible future directions.  We laud many current developments but even complain about some directions!  The discussion is split into Parts 1 and 2.  Please check Episode 5 for Part 1.http://nodycast.org