Update 12/31/2019: I have also written a guest post on this topic for PL Perspectives, with fewer details but more applications. Update 7/23/2023: This title is now a snowclone! See The best multicore-parallelization refactoring you’ve never heard of (video and transcript of my Compose 2019 talk, given June 25th, 2019.) Transcript Hello everyone. I'm so excited to be here at Compose, along so many