Leo Meyerovich founded Graphistry to supercharge visual investigations with GPUs, graphs, and automation. That has led to working with many teams on problems challenging cybersecurity, fraud, cancer genomics, and even medical misinformation. Graphistry builds on his research at UC Berkeley. Leo's most-referenced publications are in securing programming languages, and his award-winning projects include the first functional reactive web language, the first parallel web browser, programmable GPU visual analytics, and the sociological foundations of programming languages. These ideas are now used by popular browsers, web frameworks, and cloud infrastructure providers, and received awards including SIGPLAN 10 year Test of Time, Best of Year, and multiple best paper awards. He helped start ProjectDomino.org where citizen data scientists are tackling COVID medical misinformation.