I thought of the analogy of an etch a sketch toy. Let's say that you've spent about 3 years working on an etch a sketch drawing (it took you so long because you have a very flat learning curve). Finally you get to the end, or maybe just as far as you would like to go on this particular design. What do you do now? You shake it up and start over.
You could keep it, maybe frame it and hang it up on the wall. One time when I was in East Germany I actually visited someone's house where that's what they had done, essentially -- assembled puzzles, then varnished the top, put them in a frame, and hung them on the wall. Not really the point of a puzzle, I thought. The point is not to have a pretty picture of something to look at. The point is the process of the puzzle, the enjoyment you get from cutting your teeth on some new game. Same with the etch a sketch. Same with life. To me the point isn't to get to a certain point in my career or relationships or social circle or geography and just stick with it. To me the point is the process: the planning, the initial steps, the reassessment, the further plotting, the execution, the tenacity, the fulcrum. Often I don't even stick around to see the final product. Sometimes I leave the puzzle half finished. Once I am bored of sufficiently assured of my success (at least in my own mind), I am ready to move on and start over on something else.
I know there is something coming up that could change my life drastically in about a year. Otherwise I might be busy shaking things up right now. But it's kind of weird timing, both close enough in my two year plan that it makes sense to keep doing what I am doing until then, and long enough away that I'm itching to get on with it.