This is the mistake everyone makes; it's not an ability, it's a diagnosis. I even heard Rush refer to Ted Cruz as having an eidetic memory.
Actually, only children suffer from this and the report of an eidetic memory is delivered to the parents of an afflicted child with the exuberance reserved for terminal cancer or the like: "We're sorry Mrs. Jones to report your poor child has an eidetic memory." The victim, always a child, is destined to a miserable life ending in dementia by adolescence since the inevitable point will be reached where they will be unable to function at all as the entirety of their brain will be occupied by useless memories.
I lost 10 days once when I was in a coma.
My wife remembers everything I’ve done wrong in the last 45 years and we’ve only known each other for 20.