The philosopher Harry Frankfurt drew a useful line: a liar knows the truth and hides it; a bullshitter simply doesn't care what's true, only what's persuasive. Most of what misleads us isn't careful lying — it's confident indifference to accuracy, dressed up to feel true. The defense is a set of habits you can run in seconds.
Rule zero: the bigger the claim, the bigger the evidence needed
Extraordinary claims require extraordinary evidence.
If something would upend what's well established — a miracle cure, a secret everyone's missing, a simple fix for a hard problem — the bar for proof is high, not low. Excitement is not evidence. Start skeptical in proportion to how surprising, convenient, or emotionally charged the claim is.
The core questions
Run any strong claim through these. It takes 30 seconds and catches most nonsense.
1. Who's saying it, and how do they know? What's the actual source — not who shared it, but where it originated? Is it someone in a position to know, citing real evidence, or a confident voice with none? Trace it back. A screenshot of a screenshot is not a source.
2. What's the evidence — and is it the right kind? "A study shows" means little without knowing which study, how big, on whom, and whether others found the same. A single study, a personal anecdote, or a cherry-picked example is weak. Converging evidence from multiple independent sources is strong.
3. Who benefits if I believe this? Follow the incentive. Is someone selling something, chasing clicks, pushing an agenda, or profiting from your fear or outrage? A claim that conveniently enriches or flatters its source deserves extra scrutiny. This isn't cynicism — it's noticing where the pressure comes from.
4. What would the other side say? Seek out the strongest counterargument, not a strawman. If a claim only ever presents one side and mocks all others, that's a flag. Real understanding survives contact with the best objections.
5. Does it just... feel too good (or too outrage-y)? Bullshit is engineered to bypass your reasoning through emotion — it confirms what you already believe, flatters your side, or enrages you at the other. The stronger your instant emotional "YES!" or "HOW DARE THEY," the more you should slow down. (See The Biases That Fool Everyone — this is confirmation bias being farmed.)
The statistics traps
Numbers feel authoritative, which is exactly why they're used to mislead. Watch for:
- Correlation dressed as causation. Two things moving together doesn't mean one causes the other. There may be a hidden third cause, or pure coincidence. "People who do X live longer" rarely means X causes long life.
- Missing base rates and denominators. "Cases doubled!" — from what to what? Two to four is not a crisis. A percentage with no underlying numbers, or a scary count with no total, is often hiding something.
- Cherry-picked timeframes. Start a chart at a conveniently chosen year and you can make almost any trend look up, down, or flat. Ask: why this start date?
- Unrepresentative samples. A poll of one website's users, or of who bothered to reply, doesn't describe everyone. Who was actually measured?
- Survivorship bias. Averages built only from the successes that stuck around ignore all the failures that dropped out — see the successful, miss the graveyard.
The manipulation tells
Beyond the numbers, certain styles signal you're being worked on:
- Urgency and fear. "Act now, they don't want you to know, share before it's deleted." Pressure to react fast is designed to skip your thinking (same engine as scams — see How to Not Get Scammed).
- Us vs. them. Framing everything as your virtuous group against a villainous other shuts down judgment and recruits your loyalty instead.
- Vague authority. "Experts say," "studies prove," "scientists agree" — with no name, no link, no specifics. Real sources can be checked; fake ones stay conveniently blurry.
- Certainty about uncertain things. Honest experts hedge, note limits, and say "we don't fully know." Total confidence about a genuinely complex question is itself a warning sign.
A 15-second habit that beats most misinformation
Fact-checkers use a trick called lateral reading: instead of studying a suspicious page itself (where it controls the story), leave it and quickly check what other, independent sources say about the claim and the source. Open a new tab. See if reliable outlets confirm it, and who's behind the original. This one habit — checking sideways rather than reading down — is more effective than almost any amount of staring at the original.
And the simplest rule of all: before you share, pause. Misinformation spreads because people forward things that feel true without checking. A five-second "wait, is this actually real?" makes you part of the solution instead of the problem.
The takeaway
Most misinformation isn't clever lying — it's confident indifference to truth, tuned to feel persuasive. Defend yourself with fast questions: who says it and how do they know, what's the evidence, who benefits, what's the other side, and why does it feel so emotionally satisfying? Watch the classic stats traps (correlation-as-cause, missing denominators, cherry-picked timeframes) and the manipulation tells (urgency, us-vs-them, vague authority, false certainty). Read laterally, and pause before you share.
Try this: next time something online makes you feel an instant strong reaction, don't engage yet — open a new tab and see what independent sources say about it. That single pause, done as a habit, is most of media literacy.
Sources & Further Reading
Sources
- The liar-vs-bullshitter distinction is from Harry Frankfurt's On Bullshit (2005).
- "Lateral reading" as the method of professional fact-checkers comes from Stanford History Education Group research (Wineburg & McGrew).
- "Extraordinary claims require extraordinary evidence" is associated with Carl Sagan.
Go deeper
- 📘 Calling Bullshit — Carl Bergstrom & Jevin West (spotting misleading data; also a free university course online)
- 📘 Factfulness — Hans Rosling (why our instincts about the world are often statistically wrong)
- 🌐 FactCheck.org, Snopes — for checking specific viral claims
- 📘 The Demon-Haunted World — Carl Sagan (his "baloney detection kit" chapter is a classic)