he didn't know suzanne corrigan despite having worked with her for decades. so yes his misfortune was a boon to science. >> yes, and it also, and i'm glad you talk about hippocampus itself are obviously there's a number of kinds of memories, right, we do look at the hippocampus as this kind of central structure, and it's not just because of agm. it's because of work that followed in that sense, but there's another character in your book, owing and i should say what i came up in science journalism hm's name was not revealed. how is a more recent decision and a lot of times in these kinds of journal scientists will protect dead denny of a test subject by just using their initials. so to this day my hippocampus insist on calling him hm. i've always felt so sorry for him, right? he's part of a group of cases in which damage to the brain, this is not the same as thing but there was a famous case of a worker name phineas gage who had an iron bar that accidentally was forced right through l cortex of his brain and a loud, that injury again come single injured but al