> Navigation memory is the most core type of memory- most other forms of memory evolved later. There’s a reason why GPS usage is correlated with dementia. Human memory actually evolved out of a sense of navigation.

That seems very possible, and probably important, but it's hard for me to relate that to the experience (as an "anatomically modern human") of having other kinds of associative memory that are very effective and don't have a discernible spatial or other hierarchical component.