9/8g The card index technique is based on the experience that one cannot think without writing – at least not in demanding, selectively accessing memory-based contexts.

This also means that one cannot think without making allowances for differences.

I like this slightly more differentiated instantiation for thinking better than Ahren's assertion that one can't think without writing. Luhmann qualifies it over and above Ahrens who elides meaning if this was the source he may have been tangentially referencing. (Was it an explicit reference? check...)

Grabe, Mark. “Student and Professional Note-Taking.” Substack newsletter. Mark’s Substack (blog), November 10, 2023. https://markgrabe.substack.com/p/student-and-professional-note-taking?publication_id=1857743&utm_campaign=email-post-title&r=77i35.

Educator Mark Grabe looks at some different forms of note taking with respect to learning compared lightly with note taking for productivity or knowledge management purposes.

Note taking for: - learning / sensemaking - personal knowledge management - productivity / projects - thesis creation/writing/other creative output (music, dance, etc.)

Not taken into account here is the diversity of cognitive abilities, extent of practice (those who've practiced at note taking for longer are likely to be better at it), or even neurodiversity, which becomes an additional layer (potentially noise) on top of the research methodologies.