I always wonder how people such as Dan don't get tired / jaded / bored of working on the same thing for many years. I've noticed a trend in my life where I can'

I always wonder how people such as Dan don't get tired / jaded / bored of working on the same thing for many years. I've noticed a trend in my life where I can't stay attached to a single project for too long and I lose interest. In a way, it's potentially made me a jack of all trades and a master of none but like, that sounds fun to me. I don't know how I'd be able to dedicate my life to something so much I'd be a master at it. I'd get interested in something else well before then! Is it that there are two extremes of this type of thing? One extreme are people who are always flip flopping, never getting good at anything and the other is people who dedicate their lives to one thing. I wonder what causes someone to be on a particular level in that spectrum? Is it personality? Is it just that the "master" has found their calling and the "jacks" have not yet? Or is it that both have found their calling? The jack loves to be a jack. The master loves to be a master.