Something that I was quite surprised not to see in this story were questions about mental illness. There’s obviously a huge modern tendency to medicalise things, but the link to the grandfather made me wonder. What we call mental illnesses like depression, schizophrenia, anxiety are all obviously extremes on a continuum. (I’d love to see evidence to the contrary, but seizures or infarcts are probably one of the few binarized events related to the brain and even those have micro-versions.)