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60-day mapFive-Minute AI LessonsPart 3 · What It Can Do

When AI squeezes 20 pages into three lines, what does it throw out? — Summarizing

Summarizing isn't the skill of shrinking — it's the skill of choosing what to throw out.

  • 5 min
  • Put it in order
  • Quiz · 3

1 · Think first

Summarizing isn't chopping text off from the start. It's choosing what to keep and what to throw out, and AI goes through the same steps people do.

AI scans the whole text in one go, then weighs 'how important is this?' for each sentence. Then it picks only the high scorers and rewrites them in its own words.

That's also why you can predict where summaries go wrong: words that weren't in the original sneak in. Always check a summary you get against the original at least once.

2 · Experiment · Put it in order

Try it — Put the steps of a summary in order

Tap the mixed-up pieces in order. It's almost the same order you'd go through to shrink the reading for a graded class project.

Tap the pieces below in the order you think is right.

Figure

The four steps of a summary

These are the steps AI goes through inside when it shrinks a long text.

Scanthe whole text atonceScorewhich sentencesmatter?Dropcut the low scorersRewritethe rest, in itswordsThe second box is the real summary. Without a standard here, even the sentencesthat stay will be off.Key idea: how good a summary is comes down to 'what you throw out'
Because the last box rewrites things in its own words, phrases that weren't in the original can sneak in.

3 · Quiz

Quick check

Three questions. Pick an answer and it's marked right away, with the reason why.

Today in one line

Today in one line

Summarizing isn't the skill of shrinking —
it's the skill of choosing what to throw out.

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