Professor Stuart Alan Kauffman is a Complex systems Specialist, Philosopher, Theoretical biologist as well as a medical doctor. Kauffman is among the founders of Complex theory: i. Random Boolean nets, Attractors and Criticality ii. Collectively Autocatalytic Sets iii. NK Fitness Landscapes iv. The Adjacent Possible. He is currently affiliated with the University of Pennsylvania as Professor Emeritus. His current interest is in the foundations of physics, matter and its relation to spacetime.