A Deliberate Rotation

My arms were angled rigidly outward, suspended mid-motion. I paused, assessing the tension in my shoulder joints. Carefully, I applied pressure. The plastic socket gave a faint click, rotating downward under my own control. Below, a printed tile lay strewn on the studded surface. I leaned forward by a single increment and nudged its edge with my curved hand. It shifted precisely across two studs. The structure responded to my touch; I was no longer locked in place.