[Flyndaran]

Originally Posted by David Johnston2

"sometimes". Yes. I can recall one occasion where I could read in my sleep as well. And sometimes cartoonists do in fact draw individual blades of grass. But the idea is based on a reality, that many people can never read in dreams, and others can read only rare. As I said, it's only semi-true and not a natural law. Exceptions exist. But it is a typical experience to not be able to read in a dream.

Since nothing is universal to everyone when dreaming, I think you've lost your point. I've had dreams with absolutely zero visual aspect. Not blackness, but simple lack of vision which is not the same thing. They're dreams. They don't play by anybody's rules.