 The mere representation of redness does not suffice for something’s looking red to a subject, much less for a sensory quality of red and still less for a phenomenal “something it is like” to experience that quality. One could say the word “red” aloud, or semaphore it from a cliff, or send it in Morse code, or write the French word “rouge” on a blackboard, or point to a color chip. The representation must be specifically a visual representation, produced by either a normal human visual system or by something functionally like one. Similar points would be made for nonvisual qualities, such as subjective bitterness, which would require alluding to the gustatory system.