Problem flux means the rate of new problems that need solving. Theoretical breakthroughs are often inspired by real problems. For instance, information theory

Problem flux means the rate of new problems that need solving. Theoretical breakthroughs are often inspired by real problems. For instance, information theory arose from practical problems of wartime communications. YCR will be in close proximity (geographic, organization, and intellectual) to lots of startups with interesting and worthwhile problems to solve.