Is 4D less or more dense than 3D?

[Dtris]

Red light has the slowest frequency, and the longest wavelength. Violet light has the fastest frequency and the shortest wavelength. As we move thru the color spectrum from red to violet it appears that light is denser. In this case denser means you will experience more individual waves per unit of time.

While that is the measurements of light in 3rd density physical reality, this should be able to let us see a more unified principle in how light works. It should not imply that our current visible spectrum is the equivalent of the light color densities Ra and the confederation discuss.