I have a subjective and still esoteric(be warned) theory about attention span. As someone who have learned to play an instrument at my early teens, i've learned

I have a subjective and still esoteric(be warned) theory about attention span. As someone who have learned to play an instrument at my early teens, i've learned that to be actually good at something, you need to learn to deal with the primary discomfort feeling. You are learning to fighting your natural 'cavemen nature', the more primitive parts of your brain that are more inclined to satisfying immediate pleasures. As i've said, is a subjetive observation, but in my experience at least, people that tend to have lower quality results in what they do, apparently have lower 'attention spans'. Their effort to concentrate into something is faster, and if you see a puppy dog, or a cat, or even a human baby, you can see they are distracted easily, jumping from one subject to another very fast. Now if we think about humans that we regard the most, like Newton, Beethoven, Einstein, Curie, Rodin, etc.. The research or the product of their labor require a very big attention span, as in, they need to meditate over long periods of time on the same subject. Now, getting back to the point, i've learned that things like learning a musical instrument, programming, learning some math, or reading classics, helped me into acquiring long attention spans, resulting in a improvement on the quality of my thoughts, ideas and products of the thinking process. Maybe just learning music alone wont prove anything, but i bet that if you mix the right kind of activities, you can have at least, a starting point to sophisticated human beings.