Importance
Why this concept matters
Transition diaries record ordinary life while intelligent systems alter work, thought, memory, and relationship — evidence of the change from inside it. Aggregate statistics will tell the future what happened; diaries are the only genre that tells it what it was like.
Historical context
How it arrived here
Philippe Lejeune made the diary a serious object of scholarship — the daily practice of writing a life as it happens; social research formalized the diary study as a method for capturing life as lived rather than as recalled; testimony scholarship established why first-person witness has evidentiary standing that reconstruction cannot replace.
Future context
What changes next
The window for first-generation testimony — the last cohort to remember cognitive life before ambient intelligence — closes within decades. Teacher field notes, family technology diaries, and worker testimony collected now become the primary sources of every future history of the transition.
Public framework
Risks and opportunities
Risks
Privacy loss
Unrepresentative generalization
Opportunities
Lived evidence
Plural histories
Position in the ontology
Where this concept sits
Also known as: technology diary · first-person transition record
Broader: Archive Artifact
Related: Human Continuity · Synthetic Memory · Human–AI Dialogue
Context package
Cross references
Sources
Citations and further reading
Philippe Lejeune — On Diary (2009), University of Hawai'i Press.
Niall Bolger, Angelina Davis & Eshkol Rafaeli — Diary Methods: Capturing Life as It Is Lived (2003), Annual Review of Psychology 54.
Recommended reading
Shoshana Felman & Dori Laub — Testimony: Crises of Witnessing in Literature, Psychoanalysis, and History (1992), Routledge.