Jerry Michalski says that The Brain provides him with a "neighborhood perspective" of ideas when he reduces the external link number for his graph down to 1.

This is similar to Nicholas Luhmann's zettelkasten which provided neighborhoods of related notes based on distance from any particular note.

Also similar to oral cultures who relied on movement through their environment for encoding memories and later remembering them. [I'll use the tag "environmental memory" to track this until a better name comes along.]