It’s a question that everyone has pondered at one time or another: does everyone view colors in the same way? Of course, there are people with color blindness and other disorders that do skew their perception of color. But among the rest of us with normal color vision, can we ever be sure we’re seeing exactly the same thing?

In this video from Vsauce, Michael investigates this very question in addition to other other quandaries regarding animal intelligence, feelings, and perception.