Many, many years ago, I was one of the few conductors who talked to the audience and now a lot of classical conductors have figured it out... otherwise, you just get the back of someone's head playing music you could hear on a CD. It's not enough anymore.
If you are dyslexic, your eyes work fine, your brain works fine, but there is a little short circuit in the wire that goes between the eye and the brain. Reading is not a fluid process.
Scientists tend to be skeptical, but the weakness of the community of science is that it tends to move into preformed establishment modes that say this is the only way of doing science, the only valid view.

