That's technically different than what OP is asking about. She could have a perfect memory for dates and experiences in her life but not have indefinite perfect

That's technically different than what OP is asking about. She could have a perfect memory for dates and experiences in her life but not have indefinite perfect recall for something more fact-oriented like the periodic table. It sounds like her fact-recalling abilities are deeply tied to memories of experiences and conversations, so she could probably intentionally structure a study session to take advantage of that, but it doesn't mean she automatically can recall everything she reads. Edit—looks like in general people with HSAM do not have better than average memory as measured by other kinds of tests: > So far, the studied conducted at UC Irvine suggest that individuals with HSAM have superior abilities in autobiographical memories but are no different from age- and sex-matched control participants on standard laboratory memory tests. https://cnlm.uci.edu/hsam/ https://cnlm.uci.edu/hsam/