Quote Originally Posted by Universal View Post
I think it's a really interesting idea. I also think it actually is how things are. I don't know if you see red the way I see yellow, but I would bet that we don't see any color exactly the same way. My right eye and my left eye don't even see exactly the same color when they look at the same object.[/b]
Could be because of their difference in location, or that one is better quality than the other.

I think our eyes are all the same, unless something is wrong with them. That's genetic. Of course, genetic things don't have to be the same for everyone.

The Wikipedia article on cone cells tells me that eyesight is the same for most people. However, I think this only applies to the eye. In the brain, every color is most likely mapped to a different location in every person, and it would probably be difficult to find two people who mapped one color the same way, let alone all colors. Of course, the location of set of neurons in my brain that tell me what red is could easily be the location of the set of neurons in your brain that tell you who your dad is. (or some of them, since you probably need more neurons to identify your dad)

On the other hand, that article mentioned tetrachromacy, which is a rare condition in women that makes yellow a completely separate color from green and red. This would mean, among other things, that she would see a color in real life that the computer would not be able to represent. This is testable by showing her a pure yellow object vs. showing her a mixture of green and red light - she will be able to tell the difference, while normal people won't.