Forum Moderator Howard Barnum talks about studying information processing in general probabilistic theories. Explore more: Homogeneity and pure-state continuous reversible transitivty characterize Jordan-Algebraic systems. Howard Barnum at FQXI: In this short talk, Howard Barnum talks about his work on convex geometry. Information As Fuel: Future Directions: Broughton Hall panel discussion on the future of using information as fuel. Keywords: Howard Barnum, Information Processing, general probabilistic theories