This week's Excel optical illusion is called the Snake Illusion:
The illusion of expanding movement works best for me when I'm not looking at it directly, and when my eyes are moving, for example when I read the menus at the top of this window.
As in the Hering Illusion
a few weeks ago, this is not a chart. The illusion is constructed from inserted star shapes on a workbook. But when it's at its full size in the workbook, this illusion is particularly strong, at least for me.
Here's the workbook:
If you liked this article, please share it!