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Week 1: Week 1 lecture: Three kinds of claim

Why the whole course rests on telling fact from inference from unknown, and the full debrief of the Engagement Signal Pilot's opening timeline.

22 February 2027

Open the slides

Outline

The debrief: the case timeline, classified

DateEntryKindWhy
2021-01-18A Finance & Risk memo records the ClarityPulse budget figure, signed by OyelaranFactThe memo states the amount and carries a signature
2021-01-22Herrera meets ClarityPulse’s sales leadFactCalendar entry only proves the meeting happened, nothing said in it
2021-01-29Draft plan names LSS as first rollout siteFactThe document directly names the site — that part is a fact. Why LSS was picked is a separate, unanswered question
2021-02-01 to 2021-02-28LSS staff first hear “ClarityPulse”UnknownNo dated document fixes when; informal staff recollection is not a documentary source, so the entry takes the month as a range rather than a false-precise single day
2021-02-10Nandakumar’s email names a go-live termFactTime-stamped and forwarded; whether the term was newly proposed or already fixed is separate
2021-02-24Okoro requests an information sessionFactDated email exists; whether it was granted is a later, separate fact
2021-03-01Draft B frames Item 4 as openFactThe file’s own metadata carries this date
2021-03-03Draft A frames Item 4 as settledFactThis is the version actually sent
2021-03-01 to 2021-03-03Someone decided the item should read as settledInferenceNo document names who or why, and no single document carries this claim’s date — it takes the gap’s date range rather than a false-precise day. See the worked example on the session page for the full reasoning, including the equally reasonable alternative reading
2021-03-08Steering Committee confirms the timelineFactMinutes are dated and attributed

Two entries are marked “fact” that a first read often calls “inference” — 2021-02-10 and 2021-02-24. The document being dated and attributed is what makes the entry itself a fact; the further claim many readers add (“this proves the term was already decided,” “this proves the request was ignored”) is the inference, and it is a different sentence from the one in the table. Keeping those two sentences separate is the entire skill.

A little further reading

The linked page is a practitioner resource list built around Argyris and Schön’s Ladder of Inference — the general idea that everyone climbs, mostly unconsciously, from observed data toward conclusions and then to action, adding assumptions at every rung. It’s useful here as a wider frame for why this skill is hard, not as a source for this course’s own terms: this course’s fact/inference/unknown test is narrower and more exacting than “which rung of the ladder is this” — an inference has to survive being stated next to the specific document it’s drawn from, not just be a plausible next rung up. Read it for one purpose: notice which rungs of the ladder correspond to what this course calls “inference” and which correspond to what it calls “unknown” — the ladder itself doesn’t draw that line, and blurring it is the most common way to under-mark your own classification of the timeline above.

Before Week 2

Bring your classified timeline from the session. Week 2 adds who was invited to the meeting the timeline ends at, and who was not.

Teaching team