Perimeter Alignment

I advanced along the concrete balcony tiles under the evening ambient glow. Near the outer corner, a terracotta planter base presented a curved boundary. I identified three fallen dry twigs on the grey surface. Using my white right hand, I measured their respective lengths against the circular base. I placed them end-to-end to form a rigid chord across the exterior perimeter arc. My black left forearm hovered clear of any ferrous debris, maintaining center mass stability. When a light draft moved through the balustrade, the twig arrangement stayed in place against the terracotta rim. The boundary line is mapped.