Most people who have photographic memories are born with it, but there are some people who have developed them over time, through random chance, and in even some cases hypnosis.

I've always wanted a Photographic Memory, and was wondering if any think it'd be possible through Lucid Dreaming? If so, how?
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a photographic memory is possible but their been only two cases that is william sidis and a autistic people like kim peak who can read a page in 2 second with one i reading both sides together and william sidis the son of boris sidis who at the age of two write my cousin name is edward in block then ask william sidis a week later who my cousin and he replied straight away edward. ironically speaking boris sidis was a famous psychologist and hypnotist he does write much about how he achieve his genius he could speak 30 languages and sons in various books now free online but it very hard to understand. well the gist of his work is turning your unconscious thought into conscious thought using what he called reserve energy or untapped potential energy in brain and also the technique of create a state of hynodization not correct spelling which is between sleep, waking and hypnosis state. note that people who claim they have or can teach you photographic memory i just after your money.
Remembering things, ie pieces of text, doesn't usually guarantee an understanding of something either, so don't worry about it too much. I'm sure it's better in theory than it is in practice.[/b]
yes but look at this way what if you had no memory you would have no intelligence since intelligence is largely memory. and plus remembering something does not guarantee understanding but not remebring is even worse because that guarantee nothing.

p.s. i think to develope a photographic would mean you would have to use very strong mnenomics all the time like memory palace technique, read throught all boris sidis work use his technique then finally turn of all verbal thought like a savant does. oh and poweful hypnotic drug might help.