Is It a Chicken or an Egg?

As a child, i learned slow the metronome down. I would play at half tempo just to make sure every note was right. And then i would slowly, you know, kick up the metronom. Nowou argues it's a kind of a chicken or an egg. Is it that we make decisions that make those pathlines path the pathways stream line? Or is it that those pathways just get stream lined in the process, and therefore things get better and better? Law of accommodation kind of a thing? But no matter how you slice it, people studying this kind of stuff were finding that in early stages, neurological pathways could be seen through slower, more cumbersome regions of the