Guy is described by colleagues as a futurist. From his initial University of Chicago and DARPA-funded investigations in suspended animation, to his current interests in emergent properties of biological systems, he is guided by the notion that understanding how to measure complex biological systems and processing unique data streams is essential to solving some of the world’s most pressing problems. Guy holds a PhD in bio-organic chemistry and an MD with sub-specialization in critical care medicine. In 1995, he left his faculty position at Johns Hopkins on sabbatical to found the first of four biotechnology companies spanning the consumer, pharmaceutical, and tech commercial sectors. Currently he is focused on building a learning engine based on physical-chemical parameters of biological systems 
 
Guy lives in Silicon Valley with his wife and son, and is an avid athlete and philanthropist. The Millers are significant supporters of the Palo Alto Medical Foundation; whose mission is to enhance the well-being of the patients they serve.