Mark Grober is the author of the new book An End to Upside Down Thinking: Dispelling the Myth That the Brain Produces Consciousness, and the Implications for Everyday Life .  Mark is a partner in a Silicon Valley investment bank and strategy firm, has been drawn to life’s big questions starting from his years as a Princeton undergrad. Physics—particularly astrophysics —fascinated him, but he was too far into his economic major and other obligations to make the switch. As a compromise, instead of studying the invisible forces that govern the universe, he elected to study the invisible forces that govern human judgment and decision making—psychology/behavioral economics. But these big existence questions continued to plague him until he began the research which converted him from a “materialist” and ultimately propelled him to write the book.