To memorize something the subject mentally navigates through a loci path to form a vivid link between.
Does sherlock have photographic memory. Or one like Sherlocks nemesiss mind palace. It was medical deduction for the diagnosis of disease that influenced Arthur Conan Doyle not detective work. This doesnt give him skills though he also has an impressive if underutilized intelligence and an even greater gift for mathematics but its useful.
Photographic memory is the ability to recall an image for a much longer period. People with the condition have what many might think of as photographic memories which is closer to the depiction in Sherlock than techniques found in books on memory palaces. Heres the real deal.
His savant-level skills amaze the members of the FBI squad with which he works and he communicates with his team members primarily through monologues. And now fans are speculating that he may have another hugely enviable attribute. Good Will Huntings main character has a seemingly infallible memory.
Plus multiple sources recount the same scenario with Flip the Movie Script reiterating the rumor and elaborating too. It also allows him to achieve multiple degrees at once. Not because they think that they have a photographic memory themselves but because they for sure heard of at least few people with such an ability.
Is it possible to regain it. Your memory doesnt have to be photographic to be good it just has to work. Few people have a truly photographic memory.
Sherlock Holmes remembers everything by imagining that hes storing bits of information in a memory palace a technique that originated in ancient Greece. The astonishing mind palace of Sherlock Holmes for example is created out of well-known environments with many specific objects inside ie loci. There is a definite difference between eidetic and photographic memory.