I respectively disagree. I think that is at the heart of the asynchrony in gifted kids. They think on a much higher level but their physical skills may still be on par w/ peers. That can be an issue with radical acceleration. If you have someone with dysgraphia, do you deny them higher level material b/c they can't write about it?

I agree that the child might not be ready for a high school chemistry class but that's quite different from saying the child isn't ready for high school chemistry.