Here's an excellent article about having a child with a serious learning disability. The author's son is naturally different from Philomythulus, but there's a lot of commonality all the same (it's been my experience that at this end of the spectrum, Philomythulus has a lot more in common with children with other different types of learning disability than he does with people at the high-functioning end of the autistic spectrum). And the experience as a parent is very similar (oh God the paperwork). And I particularly relate to the whole shock of it, when you come from a family where intelligence and mental ability were the most highly valued traits. Mr P and I met when we were both students at Oxford; we both casually assumed any children we might have would follow in our intellectual footsteps. Not so much. It changes how you view people, that, and what you value.