In his once-famous book, Psycho-cybernetics: Creative Living for Today, author Maxwell Maltz wrote about the importance of concentration:
... concentrate creatively on the activity. No one can do it for you. When you play tennis, play tennis. When you are gardening, garden as if it is for the moment the most important thing of your life.
I must warn you that concentration is a process that can be done creatively only if you learn to do one thing at a time—and you learn to do it well before you take on before you take on another challenge.
If he is right, and I suspect he is, what does that say for the idea of multitasking?