If a person is born invisible, will his dreams be black?

I think so, because most people's dreams come from life. Although the blind have sense of smell and touch, they can't see color, so they have no color cognition. As we all know, congenital blind people have only one color in their eyes, black, so their dreams can only be black.

We all dream when we sleep. In ancient times, people didn't understand this aspect and thought that dreaming could predict the future, so every time we had a strange dream, we would ask someone to predict the future. In modern times, people know that dreams cannot predict the future. Dreams are just a reflection of reality and our inner thoughts. What we think and see in our daily life will appear in our dreams. So for the invisible man, his dream is black.

Dreaming is like a director and a screenwriter looking for a theme from life when making a movie. The same is true of dreams in our daily life. What we see in our daily life is the material we use in our dreams. It is difficult for a person to dream of things he has never seen, just like an old man who has never been to a city, and he will not dream of various scenes in the city. So invisible people can't dream of things they've never seen before.

What we see is different from what the congenital blind see. For them, other objects in the world have only a general shape, because they can touch with their hands and imagine through the outline, but they can't see the color with their eyes. Therefore, the dream world of those born blind people may seem to be an abstract space composed of objects with shapes but no colors.