Flow comes from grinding away at the work. Not the other way around. Anything that avoids grinding away at the work, avoids flow. Trying to be efficient. Try

Flow comes from grinding away at the work. Not the other way around. Anything that avoids grinding away at the work, avoids flow. Trying to be efficient. Trying to optimize. Trying to align the stars. These are not grinding away at the work. You've been interrupted? So what. Nobody cares. Get back to grinding away at the work. The only magic trick is grinding away at the work. Good luck.