But a blind person can't describe green. A deaf person can't describe the sound of a motorboat. A person without taste can't describe mint flavor. That is the point I was making.
I don't propose that a human could lose all of their senses and still be able to communicate. But I do believe computers could do so, if they are designed to do that. Humans are not designed to work lacking those senses.
So a blind person would never be able to understand the different categories of color (other than that they are placeholders for distinct categories of something).
Now we are just speculating. We believe a computer might be able to understand things for which it doesn't have the sense - but that is speculation and totally untested, and certainly can no longer be justified by using human minds as an example.
A blind person could pretend to be sighted though. There have been blind authors who wrote about sighted characters, for instance. They need not experience the thing themselves. Just learn from experience how sighted people behave and describe things, and mimic that.
You can explain red by saying it's a "warm" color for example. Metaphors work, analogies, senstion from one sense can be explained using sensations from another. Now you need to have at least one sense, which machines clearly don't.
I don't propose that a human could lose all of their senses and still be able to communicate. But I do believe computers could do so, if they are designed to do that. Humans are not designed to work lacking those senses.