University of Free Knowledge
PN 4781 · fol. 3

Firsthand and Secondhand

A primary source witnessed the event or produced the record itself, a secondary source repeats what a primary source said, and each step of retelling adds distance in which error and spin can enter — so a reporter always works back toward the firsthand. · 10 min

Your lunch-vendor question now needs people and paper. Before you collect either, learn the one distinction that organizes all sourcing: how far a source stands from the fact. A primary source witnessed the event or produced the record itself — the board member who sat through the closed session, the March 14 minutes. A secondary source repeats what a primary source said — the parent who heard about the vote, the blog post summarizing it. The distinction is not about honesty. It is about distance.

Guess before you learn

A fact leaves a witness and passes through four retellings before it reaches you. At each hand-off, every detail survives intact 9 times in 10. Out of 100 such facts, how many arrive with every detail still right?

of 100
THE DEPTH DIAL — the same idea, younger or deeper
9–12

9–12

Two refinements. First, documents are retellings too: minutes are a clerk's account of a meeting, and a police report is one officer's reconstruction — primary in form, but authored, and authored things carry their authors' interests. Second, secondary sources still earn their keep: they point toward primaries, establish what was publicly claimed and when, and let you compare versions. The failure is not using them — it is stopping at them.

The compounding matters because it is multiplicative. If a detail survives each hand-off nine times in ten, after four hand-offs only two-thirds of such details are intact; after seven, less than half. No single link feels careless, and the chain still fails. Distance is not a mood; it is arithmetic.

primary source

A source that witnessed the event or produced the record itself. Everything else is a retelling — useful, but farther from the fact.

Why is this true?

Why can the same person be a primary source for one fact and a secondary source for another?

Because distance is measured per claim, not per person. The chief who commanded the crews witnessed their work but only read the investigator's findings — firsthand on one, a retelling on the other.

witnessed, recordedone retellingtwo retellingsthree retellingsThe eventthe vote itselfPrimaryboard member, minutesNews storyreporter's accountAggregatorrewrite of the storySocial postsummary of the rewrite
PLATE I Distance from the fact — every arrow is a place for error to enter. Work leftward.

Ink That Thinks — guess first; the answer draws itself.
A fact leaves a witness with every detail right. Each retelling keeps a given detail intact 9 times in 10. Sketch the chance, in percent, that all details are still right after each retelling, out to six.

0123456020406080100retellings% chance all details right
Drag across the axes to sketch.
PLATE II The arithmetic of retelling — 90 percent per step is not 90 percent at the end.
Retrieval Gate — answer before you continue 0 / 4

1.For the March 14 vote, which is a primary source?

2.A detail survives each retelling 9 times in 10. What is the percent chance it is intact after two retellings?

%

3.Match each source to its distance from the fact.

The referee's scorebook
A recap written from the scorebook
The goalie describing her own save
A fan repeating the recap

4.The fire chief tells you what his crews did and what the arson investigator concluded. How do you classify him?

Working back toward the firsthand is mostly a habit of asking for directions. Every secondary source knows where it got the fact: a story cites a report, a spokesperson cites a filing, a neighbor names who told her. So ask. "Where can I read that?" and "who told you?" each move you one link closer, and most chains are only two or three links long. When you reach the primary source, get the record too — memories shift with retelling, and the document made at the time does not.

YOU ARE HOLDINGPRIMARY FORSTILL SECONDHAND FORMarch 14 minuteswhat was moved and votedwhy members voted that wayPolice reportthe officer's own observationswitness statements inside itPress releasethe company's official positionthe facts it assertsEarlier news storywhat was claimed, and wheneverything it reports
PLATE III Per-fact distance — the same page can be close to one fact and far from another.
Retrieval Gate — answer before you continue 0 / 4

1.Three outlets report the same detail. You trace them: B cited A, and C cited B. How many independent sources do you have?

2.Order these accounts of the same crash by distance from the fact, closest first.

  1. The driver who walked away from it
  2. The trooper's report written that night
  3. A morning news story on the crash
  4. An afternoon post summarizing that story

3.A source tells you "everyone knows the contract was never signed." What two questions move you toward the firsthand?

4.Without looking back: what separates a primary source from a secondary one, and why does it matter?

You can now sort any source by its distance and walk a chain back to its origin. But the closer you get to the firsthand, the more the conversation costs the person having it — witnesses have bosses, and participants have stakes. Next folio: the ground rules that make those conversations possible, and the promise a reporter must never break.

Practice — new ink and old, interleaved

1.Your readers are in Dover. Which story carries proximity?

2."Dog bites man" is not news; "man bites dog" is. Which value is that old saying about?

3.A detail survives each retelling 9 times in 10. Out of 1,000 such details, about how many are fully intact after three retellings?

4.Which gets you closest to what the closed session actually decided?

5.From memory: why do reporters ask "where can I read that?"

6.Order by distance from the fact, closest first.

  1. Raw video of the council vote
  2. The clerk's official minutes
  3. A reporter's story on the vote
  4. A reader's comment on the story

7.Order these versions of the same fire story from strongest to weakest claim on a Milford front page.

  1. Fire displaces 40 Milford families tonight
  2. Fire displaces 40 families in the next county
  3. Fire displaces one family, no injuries, far upstate
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