My swaying arms had been in syncopation with the swaying arms of the woman walking ahead of me for some time. Then, with first her right hand then her left, she rearranged or adjusted her hair, and when they returned to her side, our arms’ swaying was out of sync, which I experienced as something uncomfortable. Then they got back into sync, just before she turned off to the side; but now, with her arms’ swaying being perpendicular to mine, I became confused, for the brief moment I could still see her arms, as to whether or not our arms’ motion remained in true alignment.My arms, now neither in nor out of sync with anything (because the lady had turned off) felt as if they had been relieved of a weight. They had been “unbound” and could move freely without needing to be “matched up.” And I recalled how some months ago I had been walking with a plastic grocery bag that held a small dense object in the bottom; and as my left arm swayed forward, the small object in the bag swayed back, and as the small object swayed forward, the arm swayed back. But it was confusing to look at, and it would seem to me (which was not the case) that the arm and small object would be swinging in the same direction at the same time.And I recalled how at that time I’d remembered how I’d been running behind a woman with a pony tail one day, watching the tail in a ball swaying back and forth from shoulder to shoulder, right to left, and how I’d been thinking at the time I couldn’t tell if the ball of the pony tail swung to the left as my right foot stepped forward, or the other way, swinging to the left with the forward motion of my left; and there seemed very little correspondence at all between the right and left of her pony tail, which was one thing, a single pony tail, and the right and left of my feet, which were two things, two separate feet. And I was thinking (this was after the event of the syncopated swaying arms) how the confusion I experienced with the object in the bag was like the confusion I had experienced with the pony tail swinging and how it was not at all like the confusion I had just experienced when I saw the woman’s formerly in-sync swaying arms had become perpendicular to mine — but in fact it was exactly like the latter confusion, I later decided: for the left and right of the pony tail, from shoulder to shoulder, was perpendicular to the left and right of my steps, moving towards the swinging tail.