How can I know if the way I perceive red is the way everyone else perceives it?

Question: How can I know if the way I perceive red is the way everyone else perceives it!?

In other words, could the way I perceive red be the way you perceive yellow!? What is the absolute proof!?Www@QuestionHome@Com

Best Answer - Chosen by Asker:

I actually asked this question before when I was in grade school!.
A kid in my class said I was stupid and I put it out of my mind after that!.
Www@QuestionHome@Com

As you can use the 3 spectral primary color to mix any color, you can mix any color using light and you could measure how much you used of each color to get your impression of a particular color (even better if you get shown a particular color and are asked to reproduce it by mixing)!. You repeat that for several colors!. Then you compare your results with that of a group of other people!.Www@QuestionHome@Com

everyone at a given point is asked which one is red points to the same thing!.
or may be something i never thought of!.!.Www@QuestionHome@Com