Geoffrey Fox received a Ph.D. in Theoretical Physics from Cambridge University where he was Senior Wrangler. He is now a distinguished professor of Engineering, Computing, and Physics at Indiana University where he is director of the Digital Science Center, and Department Chair for Intelligent Systems Engineering at the School of Informatics, Computing, and Engineering. He is a Fellow of APS (Physics) and ACM (Computing) and works on the interdisciplinary interface between computing and applications. Recent research studies the interface between the Apache Big Data Stack and Machine Learning with High-performance Computing leading to new parallel algorithms and open source software environments such as Twister2. He uses MOOC approaches to the teaching of Big Data and cloud computing classes. He has supervised 73 Ph. D. degrees in physics and computing areas.