Part 6/10:
The discussion reveals a common misunderstanding: viewing color mixing as an actual physical blend of colored light moving over objects (like spinning objects), leading to perceptions of yellow or other colors. The host explains that light is electromagnetic radiation, characterized by wavelength. Our brain interprets the signals from the cones based on the wavelength of incoming light; it does not perceive colors as physically mixing on surfaces but as a result of reflected wavelengths.
When objects reflect specific wavelengths, they appear their perceived color because of the activation levels of the different cone types. For example, a yellow object reflects both red and green wavelengths, eliciting responses from those cones and resulting in the perception of yellow.