The Checker Shadow optical illusion is a great way to visualise one of the most common problems facing the sharing of knowledge. That is, depending on where we ‘stand’ we see different things—even if they are the same.
Squares A and B are the same colour grey
I’ve scrutinized this optical illusion. I verified the hexadecimal values of the colors with Adobe Photoshop. I even cut both squares out of the original image and pasted them next to each other. And still I can’t make my brain believe it. Very impressive. I need to read the explanation again…(from curious frog)
And just to be sure, I did it as well.