>There we go. Looks like we argue around a definition here.
>Savant? To me a person with a very limited width of knowledge, but this to high skills.

When I used the term "savant" I was referring to someone with exceptional abilities, such as the ability to have photographic recall of things he's seen from prior disassembly. It's an uncommon ability, and I used the term "savant" to relate to that uncommon ability.

https://www.collinsdictionary.com/us/dictionary/english/savant

"A savant is a person of great learning or natural ability."