My friend Tilke sent me a link to this short film depicting synesthesia, writing “This is what it’s really like.”

Folks with synesthesia experience what those without it might call a mixup of the senses–seeing sounds, feeling colors, that kind of thing. The most famous way synesthesia shows up is with the alphabet: A synesthete might see letters in different colors. It’s not that they associate colors with letters, they will actually see an “N” as inherently brown, for example, or an “E” as red. Numbers can have colors, too. Imagine how different your experience of reading or math would be if words and equations had color schemes!

At first I was fascinated by synesthesia in terms of what might cause it–maybe it’s the result of incomplete synaptic pruning, for example. In a lecture by Dr. Ed Awh in his Cognitive Psychology class a few years ago, though, I realized that synesthesia is more like a super power than a problem. Here’s a slide from the lecture:


Difficult, slow search for most of us, because we have to look at each digit to determine whether it’s a 2 or a 5. A synesthete with colored numbers does not have to do this, because color is what cognitive psychologists call a primary-search quality. Differences in color jump out at you. Imagine the same field of 2s and 5s, except the 2s were blue and the 5s were red. You could pick out the 2s immediately, like I saw Tilke do. A superpower!