Zettelkasten

Literally "card index", in ze german.

Roam and them have looked into this a good bit. Easy to find a deep dive on that. Like Andy Matuschak's working notes for which Andy built an interface where multiple notes can visible at once and with a hover state for peeking at the summary of a note. Andy argues for what he calls evergreen-notes

See also digital-garden, foam, and commonplace.

Zettelkasten