If HPC had a band of rock stars, Rick Stevens might well be lead guitarist and do the vocals. The associate lab director and Exascale Computing Initiative leader at Argonne National Lab (and professor at the University of Chicago) has one of the most impressive records of sustained achievement in the HPC community. Here, in part one of a two-part episode of the @HPCpodcast, Stevens takes up the topic of AI is changing the face of science from the points of view of a scientist and a computer scientist.