On Thursday, I had the pleasure of attending Paul McCartney's concert in Tel-Aviv. Sure, the tickets were a rip-off, but worth every penny. The 66 year old Beatle had more energy on stage than most kids today have on the school playground. Which brings me back to my pondering... where will I be "when I'm sixty-four" (or sixty-six, whatever)?
If you've ever been at a large organization, you'll have heard the saying that people get stuck one level higher than the one they were best at. The theory is simple - whenever you're good at your job you get a promotion. When, at some point, you reach a job you suck at, the promotion stops and that's where you end up.
The moral of the story is this - wherever you are, find what you're really, really good at and keep doing it. If you're a great performer, then why not keep doing it until you're sixty-four? If you're God's gift to development, you don't HAVE to become a manager, a product manager or an entrepreneur - keep developing! If you're the best salesman in the world then by all means keep selling. Unless of course, you want a change. Do take on new challenges and change, but also know when you have reached your limit. Remember to leverage your own relative advantage and never, ever try to be someone else.