Four years ago, I was a full-time music producer and global-traveling DJ. I had been working in music for nearly a decade, was getting millions of plays on streaming platforms, and had produced a couple songs that landed in the Billboard top 40. But despite having a career many people dream of, by 2016 I was feeling uneasy. My career had started to plateau and my attention was increasingly turning toward topics far afield from music, particularly the existential risks of technology. To unders...