Though not as predictable as Old Faithful, Merlin regularly produces (apparent) flow-of-consciousness riffs on the biggest ideas, typically in refreshing ways. His post on future-proofing your passion is no exception. There's a fine line between being a doe-eyed optimist about dreaming your dreams and taking care to nurture the voice that continually whispers in your ear throughout the chapters in your life when you're outwardly successful but inwardly unfulfilled.
Maybe it's because I recently left an established career to pursue a passion, but Merlin's point resonates. When I was a kid, I memorized the song from The Muppet Movie that said, "life's like a movie, write your own ending, keep believing keep pretending..." A few months ago I finally saw Up in the Air, and the scene I remember most is the one where Clooney's character fires a guy and (albeit selfishly) rekindles the victim's passion for what he had always wanted to do but forgot about in the routine of his first and only day job.
Are you wondering (or worrying about) what you have to lose, or what you have to gain?