I recently received the following e-mail from a good undergrad friend:
This link in your bits feed made it into lecture today after I sent it to Dr. Wu.
This is his reply:
"It is easy to explain why we see green dot. Since the pink dot moves fast, what we see is actually the complement color of pink, which is green. When the pink changes to grey (the background color), you will see green. If a monitor show R and G at different location, you will not see R and G, but yellow, as long as the lighting moves fast from R to G (faster than 30 Hz or so)."
He showed it in class and said he would ask how it works on the final exam.
Is this an example of chaos theory? The effect of including a link in your page alters the final grade of Dr. Wu's students.
Hopefully no one in that class reads my site. :)