What exactly is 'inchind dermait'? All this time I assumed that Cend Fáelad
had been suffering from amnesia when a blow to his head cured him. The last
passage implies that 'inchind dermait' is the normal forgetfulness of every
person and the blow to Cend Fáelad's head removed his ability to forget,
leaving him with something like a perfect memory.
That leads me to another question. Was he taken to Túaim nDrecan by chance
to convalesce, or was he taken there because his people realized that
something unusual had happened to him and they wanted him to be studied by
experts in all branches of learning?