Excuse me but I’m not sure what I’m not supposed to be seeing here. Without even reading the text I see two circles of the same color, with lighter or darker backgrounds.it’s important to learn when to stop arguing with people and just let them be wrong.
I learned to back way off with Dennis when I learned that he felt himself more astute than the optical engineers of SPIE or the professors of cognitive studies at MIT. As with most observers with erroneous opinions, I went the extra mile to create a graphic to illustrate that NO, he does not always KNOW what he sees.
what am I missing?