Actual psychological closure in everyday life is a matter of minding what you are doing: in that condition, the practiception circuit is closed and the current flows freely. But human minds tend to wander.
According to a recent study published in Science by Harvard University psychologists Matthew Killingsworth and Daniel Gilbert, almost half our waking thoughts have little relation to what we’re currently doing. Although in general it’s clearly useful to be able to think about things that aren’t present here and now, and although mind wandering in particular can facilitate creative problem solving, it is also linked to negative emotions and unhappiness. As psychologist Jonathan Smallwood and his colleagues have shown, negative moods lead the mind to wander. As Killingsworth and Gilbert discovered, people are less happy when their minds are wandering than when they’re focusing on what they’re doing. Furthermore, although people are more likely to mind wander to pleasant topics than to unpleasant or neutral ones, people are no happier when thinking about pleasant topics than when they focus on the task at hand, and they’re less happy when they mind wander to neutral topics than when they focus on their current activity. As Killingsworth and Gilbert conclude, “a human mind is a wandering mind, and a wandering mind is an unhappy mind. The ability to think about what is not happening is a cognitive achievement that comes at an emotional cost.”— Evan Thompson (2014, Kindle Locations 7177-7190)
Even when you think about what you are doing, instead of focusing on doing it, your mind is beginning to wander … unless you focus philosophically, becoming a beginner.