Some links
Flow describes an intense and focused concentration on what one is doing in the present moment, a merger of action and awareness, a loss of reflective self-consciousness. In a sense, when someone is in a state of flow, the mind enters a meditative autonomous trance, which can distort their perception of time, as they become solely absorbed in their present action.
Most of us have experienced flow at some point when we have been so absorbed in a physical or creative activity that all our sensations and thoughts have felt reduced to a compressed euphoric singularity, and our actions have felt dissociated and involuntary.
Professor Mihály Csíkszentmihályi, the psychologist who named the concept, said in a 2004 TED Talk that: “When you are really involved in this completely engaging process… [you don’t] have enough attention left over to monitor how [your] body feels, or [your] problems at home… [Your] body disappears – [your] identity disappears from [your] consciousness.”
Marcus Chown’s book is a good primer on quantum theory, but it will make your head spin.
(you’ll understand the dad joke after you’ve read the book)