I have aphantasia, SDAM, and face blindness. Like the author i rely on mental models (I wrote a book called visual models for software requirements), Im good at getting to the heart of things and am constantly organizing information so I can remember the principle. I do get anxiety about not remembering people once they pass away. I might only remember a few things about them. But when I look at pictures I can often…
I have the opposite of face blindness and subconsciously process every face but I have lethonomia (cannot remember people's names). Years ago, I was once riding my bicycle from campus at probably 21 mph / 30 kph and recognized the brother of a lab partner when they were completely to the side of me and 75' / 22 m away in profile after seeing a photo of them once. I'm probably not as good as I once was due to a TBI.