Well sure the wavelength of a given light beam makes it useful for interacting (or passing through) things of different sizes. And the frequency of a brain wave

Well sure the wavelength of a given light beam makes it useful for interacting (or passing through) things of different sizes. And the frequency of a brain wave makes it useful for thinking about tasks of different temporal sizes. I think that thinking of these waves as the same phenomena with the same rules but on different scales is a more powerful tool than trying to divide a continuous spectrum into a large taxonomy with "known" properties. If we thought of the radio spectrum as communication waves, infrared light as waves to do with heat, and visible light as a medium only for localized spatial information, then we would be stumped by the cosmic microwave background, TV remotes , and light houses.