mnemonist
Noun
Meaning
an expert in the use of mnemonics; someone able to perform unusual feats of memory
Source: WordNetSynonyms
Hypernyms
Examples
It would seem that making unusual connections is unusually difficult and, often, rather "indirect"-be it via words, images, or whatever. The bizarre structures used by mnemonist (and, presumably unknowingly, by each of us) suggests that arbitrary connections require devious pathways.