You’re arguing this point from so many directions, I don’t know where to start. I’ll just say this: I have a to do list of projects that I absolutely adore working through, and it just keeps growing, with no end in sight. Every time I push into new territory, it opens up new possibilities, and I think of new things to try. Meanwhile, I can earn plenty of money without being miserable. When I’m 80, I will still have plenty left to do and learn, but my body and mind may no longer be up to it. If we can actually reverse aging, that will no longer be the case.

So I don’t know what to tell you. Maybe your life isn’t interesting enough to enjoy for more than 80 years, but mine sure as hell is.