Grey Dot Illusion
The illusion is characterized by grey blobs at the intersections of a white grid on a black background. The grey blobs disappear when looking directly at an intersection.

The illusion is characterized by grey blobs at the intersections of a white grid on a black background. The grey blobs disappear when looking directly at an intersection.

The upper is the most recent comment
Mike, that is the coolest illusion I’ve ever seen. Nice.