On that matter, here are some interesting people:
- Robert Durbin (64-year-old doing calisthenics): https://youtu.be/NPG94VMWPww
- Lucio Chiquito (the 104-year-old PhD student): https://www.bbc.com/reel/video/p090s793/advice-from-a-104-ye...
Maybe it will serve some of you as an inspiration to draw upon. Who knows?