TIL about Tetrachromacy, a condition which lets you see more colors. Normal people can see about 1 million colors, while tetrachromats may see up to 100 million. Up to 12% of women may have it.
Tetrachromacy is a rare eye condition that allows for increased color vision. We’ll tell you about what causes it and how it’s diagnosed, as well as why you need to be skeptical of online tests.
There is a lot of misinformation about tetrachromacy and sadly this article perpetuates some of it. 12% of women are dormant tetrachromats, which means they have extra sets of cones but don't actively use the extra ones. And the article suggests men are "less likely" to be tetrachromats, which is technically true, but misleading, since men cannot be tetrachromats at all.