Logograma
Heptapod ink, after Arrival. A circular logogram writes itself on pale fog: a hand-unsteady ring exhales flame-shaped plumes of ink-in-water that fray into smoke and splatter, holds its complete form with a barely-alive shimmer, then inhales back to nothing. The loop is a strict palindrome — it plays identically forward and backward, the way heptapods read time — and the live sketch writes a different glyph each breath, an endless sentence.