Creating a "signpost user interface" can help to uncover directions to take in digital contexts as out of sight is out of mind. Having things sit in your way within one's note taking workflow can remind them to either link things, or move in particular directions for discovering new avenues of thought.

Example: it would be interesting if Jerry's The Brain would have links directly to material in Flancian's Agora to remind him to search or find relevant material there. This could help with combinatorial creativity with inputs from others, though it needs to be narrow so as not to result in rabbit holes which draw away attention.

Link to: https://hypothes.is/a/iQvo7l1zEe6dZ5_9d9rrVw

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.]