One problem with that argument is that the person who's been doing it for years and has seen it all will not be able to do it directly from memory, because thos

One problem with that argument is that the person who's been doing it for years and has seen it all will not be able to do it directly from memory, because those problems almost never come up in practice. It's like interviewing a doctor by giving them the symptoms of some rare 3rd world disease, that they maybe studied back in school, and judging their ability based on how well they diagnose it.