A Visual Illusion: Game-and-Watch Style

Here is a visual illusion (in game-and-watch style) for you. The illusion is of the forward motion. It arises from a border of about 1 pixel that lags/leads the dominant color.

This may be the strongest optical illusion I’ve ever seen.pic.twitter.com/J8fCqbQUJ1

— Siqi Chen (@blader) November 22, 2020

(Tip of the cap to Sydney Padua.)