What could possibly be a boundary to space and time? If there is no boundary what does infinite expansion mean? What gave birth to this Universe? When I think of infinite expansion often, I think of these macroscopic scales but does expansion travel infinitely in the microscopic direction? Ideas like these brought me to fellow rock climber and theoretical physicist Kai Trept. What comes to your mind when you imagine infinity and the place beyond space? In this conversation we travel in the microscopic, subatomic direction seeking insight into infinity.??‍♂️?