Again he uses the idea of a "file" which I read and understand as similar to the concepts of zettelkasten or commonplace book. Unlike others writing about these concepts though, he seems to be taking a more holistic and integrative (life) approach to having and maintaining such system.
Perhaps a more extreme statement of this might be written as "zettelkasten is life" or the even more extreme "life is zettelkasten"?
Is his grounding in sociology responsible for framing it as a "social organization" of one's memory?
It's not explicit, but this statement could be used as underpinning or informing the idea of using a card index as autobiography.
How does this compare to other examples of this as a function?