Are radio waves red?

[Machine_Elf]

@Stinky_Pete

There are people who can see more colors than most of us.

“Researchers suspect, though, that some people see even more. Living among us are people with four cones, who might experience a range of colors invisible to the rest. It’s possible these so-called tetrachromats see a hundred million colors, with each familiar hue fracturing into a hundred more subtle shades for which there are no names, no paint swatches. And because perceiving color is a personal experience, they would have no way of knowing they see far beyond what we consider the limits of human vision.”

Makes you wonder about the mantis shrimp, which has 16 different receptors (some of which can detect circularly polarized light).