[pixl97]

I think you're idea is backwards. You'd have to have a person born without that body part at all.

A person that could see then went blind can experience the idea of redness. A person born blind cannot.

[nitwit005]

The article doesn't seem to suggest that, but even if we accept your premise, it doesn't really change things.

There are plenty of people who are unable to cry, and thus have never experienced it. Those people still appear to experience the normal set of emotions. The quotes in the article directly suggest this shouldn't be the case:

> we feel sorry because we cry