Over on the evil twin to this thread there's talk about the difference between learning a thing and becoming proficient at it after years of practice.
Now that I think about it, bonsai people want to do EVERYTHING.
I mean we're actually all a bunch of malcontents, in a good way. I don't like that branch; I'm going to try a new insane wiring technique. I can't find the perfect pot for this tree; I'm going to learn pottery. Deadwood; I'm a wood carver now. Display; I'm a carpenter now. Accents; looks like I'm a geologist today. Soil; oops, still a geologist. Ferts; chemist. Why won't my tree grow here? Perhaps I should become a geographer, or maybe a cosmologist. Oh, hey, I just became a photographer!
There's the old adage that, in its entirety, reads: Jack of all trades, master of none; but better than a master of one.
I have just now realized that THIS is what that actually means. Bonsai folks, in order to become a master of the practice, MUST be Jacks of all related trades. The learning never stops, and we're all happiest because of it.