This is largely how I think about the future of my career. I'm old enough to have skill sets that are completely irrelevant now. I've also seen how I compare

This is largely how I think about the future of my career. I'm old enough to have skill sets that are completely irrelevant now. I've also seen how I compare to interns at learning completely new stuff: many of them kick my ass! If you don't make good bets early in your career and learn stuff that can carry you through large portions of your career, then you can find yourself stuck. Also, taking the wrong job can be a major career stumbling block. I'm not planning on early retirement, but I'm absolutely planning for a demotion come age 45 or so. I'm just hoping that there will be something I can do circa 2030.