The question to explore

Catch the travelling birthday

Can a focused check catch a story contradiction?

About 9 minutes / Suggested pace / No account needed

  • Test
  • Expected value
  • Correction
Try the experiment

What this activity helps you do

Change the draft age, run the check, then change the source age. The old pass disappears because it no longer describes these inputs. AI-generated work needs checks against the current evidence.

Local teaching illustration / No AI model call

  1. Keep Current character-note age at 17 and change Draft age to 19.
  2. Press Check this version and read the mismatch. Set the draft back to 17 and check again.
  3. Change the character-note age to 18. Notice that the pass disappears. Check again and explain why changing a source requires another review.
Character note: 17. Draft: 17. Run the check to compare them.

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The idea

A sentence can sound good and still disagree with your notes. This check compares just two numbers: the age in the current character note and the age in the draft.

Both start at 17. A pass means those two current numbers agree. It does not prove the source age is true or that the rest of the story is correct. Editing either number means you need to check again.

Take this with you

What changed?

A check is most useful when you can name the exact property it examines.

Try explaining it.

If the draft passes this check, may we announce that the whole chapter is correct?

Open a possible explanation

No. We compared two age fields for the current inputs. The source itself, other continuity details and writing quality still need their own examination.

Choose what to try next

Keep exploring, or stay here and try another variation.

By Jonathan Simone, with AI assistance. First edition, October 2026. Activities are fictional teaching examples, not measured AI performance. Help us improve this lesson.

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