How can you be sure that what you see as e.g. yellow, everyone else also does?

Question

to aaronbegood: yeah, I think about that quite often. So if you ask a person "could you hand me the yellow pen" he sees it as green, but calls it yellow, soooo HOW WILL WE EVER FIND OUT??????

Answer 1

DUDE!!! i thought that i was the only one who thought about this scenario...and what if you hear it as yellow but the other person calls it something else? very interesting, indeed, very interesting


AE

Answer 2

I don't. I'm colourblind, so I'm well aware that I see the world differently to everybody else. The only reason you know that yellow is yellow is because your parents told you. It's a label.

Keith J - I'm afraid you are mistaken. The three primary colours of light are red, green and blue, and red/green colour blindness is caused by a problem with the blue cone in the retina. As yellow is not a primary colour of light, the view of it is affected by colour blindness.

Don't get me started.

Answer 3

AFAIK, yellow should be fine for everyone to see.

Folks who are colour blind have difficulty with Red and Green and some rare cases have trouble with Blue.

Answer 4

We can't - it's just one of those things that is "understood" that despite what anybody else sees, it still represents 'yellow' to them, even if they see it as blue and pink checks !-

Answer 5

Ha yes i asked my father in law, aka know it all, the same question and he said i was thick for even asking. See you old **** other people are as inquisitive and as open minded as me. Thank you for asking!!!!!

Answer 6

I know. I wonder that all the time. If you find out, let me know.

Answer 7

Let me know when you find a way.

Answer 8

There's no way of knowing.
http://en.wikipedia.org/wiki/Colour_perception

Answer 9

good question. My daughter asked me the same question the other day. Maybe i will be able to give her an answer now. So thanks

Answer 10

We'll never know!! You can't describe a colour.