I once read an article about the differences between the brains of taxi drivers and people who did not need to remember how to navigate through an urban setting and the scans of the taxi driver's brains showed that the region that they used to retain and process information related to navigation was much larger than that of people who did not perform similar tasks. Here's a short video.

Memory is something I'm really interested in too. Sometimes I like that it's imperfect and that it glosses over certain details and recombines things. Sometimes. It reminds me of the Australian Aboriginal myths of Dreamtime and how all reality is dreamed or sung into being.

Another thing that strikes me, is that there are different kinds of memory. For example, kinetic memory is something that's particularly useful in public speaking or language acquisition, even though the very act of speaking requires very deliberate and precise muscle movements, we're not used to thinking about them. By externalizing the act of committing something to memory kinetically, it adds that layer of self-signposting to help ourselves along.