When I was working on my dissertation about Flux Agents, I shared a conversation with Miles Anthony Smith, author of Becoming Generation Flux. He was also interested in the idea of having a flux career and the emerging work patterns embodied in Generation Flux as presented by Robert Safian in Fast Company.
Miles discussed being a generalist, but the more I talked to him I realized that he was diversely talented and had pursed multiple career paths. It was obvious to me that he was a serial specialist. We continued to talk about career specialization and integration for a long time. Since then, Miles has gone on to write The Serial Specialist and gave me a nice shout-out on his YouTube channel. You can watch the short clip here.