klingon_story1-10  Exercise 2: Why No Exact Count
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Reasons:
  - There is no census. Speakers are scattered across many countries.
  - "Speaks Klingon" has no fixed meaning: a few phrases, reading, or
    fluent conversation give very different totals.
  - Estimates come from different years and sources (a dozen in the 1990s,
    20-30 in 2009, 30-50 from Duolingo in 2018, about 100 from a 2024
    mailing-list guess) and are based on experience, not measurement.
  - Online learners (Duolingo, courses) count as readers more than speakers.

More reliable evidence:
  - A survey of Institute members, certificate holders and course
    participants, with a stated definition of fluency.
  - Test results from the Institute's certification levels.
  - Attendance and participation records from the annual meeting.