If the light exists on a linear spectrum, why does the color wheel cycle nicely?

Question

So if red wavelengths of light are the longest wavelengths of light, and blue/violet are the shortest (meaning they are on the opposite sides of the visible spectrum we can see), why does red flow into purple and into blue so nicely on the color wheel with no gap. Are all wavelengths (radio/ microwave/ infrared/ ultraviolet/ x-ray/ gamma ray) just some in-between purple color we can’t see?

In: 3

Answer 1

Because purple and magenta are not colors of light (at least, not of any single wavelength of light), they are color perceptions created by the way our brains interpret light. They are what we see when we see a combination of blue and red light at the same time in varying levels.