So light's frequency is relative, so does that mean light is both most likely to exist in a certain area and also NOT likely to exist in the same area? How can the physical space light occupies be relative? Because to one thing light can be a gamma ray and to another thing it can be a radio wave, but those two wavelengths have different localization patterns. So just because I measure something, it automatically determines the physical space that it exists in for my point of view?

Edited November 17, 201114 yr by questionposter

The length you would measure in two frames is not the same.