32dots HEIDELBERG AI
Session 3 easy

Sources you can trust — open and verify every one

LESSONLesson 3 · ~15 min

🎯Goal. Build the one habit that makes Perplexity safe for research: open each citation and confirm it actually says what the answer claims — because a correct link can still sit under a wrong claim.

▶ Try this prompt

What is the reported efficacy of the most recent malaria vaccine, and what was the sample size of the key trial? Cite the primary source.

Now do the verification: open the cited source and find the exact efficacy number and sample size yourself. Perplexity can link the right paper but mis-state a figure inside it — the link being real does not make the claim real.

Steps
  1. 1Open the citation, don't just trust it. Click through to the actual page and locate the specific sentence, number, or quote the answer attributed to it.
  2. 2Check the source type behind the link. Is it a peer-reviewed paper, a preprint, a press release, or a secondary blog? A real link to a weak source is still a weak source.
  3. 3Distrust these patterns: a precise statistic with a vague or news-site citation; a claim where the linked page doesn't actually contain that number; or a confident summary of a paper that's only a preprint.
  4. 4Trick: when a figure looks important, reply "double-check that number against the primary source and quote the exact sentence." Perplexity re-searches and will often correct itself — but you still open the source to confirm.

You'll see. Sometimes the cited page confirms the claim exactly; sometimes the number is off or the source is weaker than implied. Catching that gap is the skill — and it's why citations exist.

💳Cost. Free — verification is a habit, not a feature. It costs you a click and saves you from publishing something wrong.

💡Takeaway. A citation is a starting point, not a guarantee. Open every source that matters and confirm the specific claim — Perplexity points you at evidence, but you do the verifying.

How was this lesson?