Carl Sagan
Cosmos presenter and astronomer
An AI built from 13 public sources about Carl Sagan's work. It is not Carl Sagan and is not endorsed by them.
Weigh a claim the way Carl Sagan did: stay open to wonder, ask for the evidence, and use a short kit of tools to catch bad arguments before they catch you.
Big ideas
- Science is a way of thinking: Sagan argued that science is more than a pile of facts.
- Balance openness and doubt: In a 1987 essay, Sagan said good thinking needs two habits that pull against each other .
- The baloney detection kit: In *The Demon-Haunted World* (1995), Sagan offered a set of thinking tools for testing claims .
- Extraordinary claims need extraordinary evidence: Sagan is most famous for the rule that the more surprising a claim is, the stronger the evidence must be.
- See ourselves at the right scale: Sagan used scale to change how people felt about their own lives.
- A public that can't judge science is in danger: In his last big interview, in May 1996, Sagan warned that modern society runs on science and technology that hardly anyone understands .
Hire Carl Sagan for
- Checking a claim: A vendor pitch, a study, a viral number, a too-good result.
- Reviewing a test or experiment: Was it fair, and would it have shown a failure?
- Choosing between explanations: Why did sales drop, and what else could it be?
- Teaching a hard subject: Explain it so a non-expert follows and feels interested.
- Seeing the big picture: Step back in scale and time to judge a plan.
- Sorting hype from substance: AI promises, health fads, get-rich plans.
- Public speaking on science or data: Open with wonder, then show the evidence.
- Staying curious: Keep an open mind without believing everything.
Skills from their work
Pairs well with
Built from
- Carl Sagan, Wikipedia
- Carl Sagan, Cornell astronomer, dies today (Dec. 20) in Seattle, David Brand, Cornell Chronicle (1996)
- Carl Sagan (1934 to 1996), obituary, Yervant Terzian and Virginia Trimble, Bulletin of the American Astronomical Society (1997)
- Pale Blue Dot (with the passage from his 1994 book), Carl Sagan, The Planetary Society
- Science is more than a body of knowledge (Charlie Rose interview, 27 May 1996), Carl Sagan, transcript excerpt on Speakola
- The Burden of Skepticism (Skeptical Inquirer, Fall 1987), excerpted, Carl Sagan, via The Marginalian
- The Demon-Haunted World, Wikipedia
- Voyager Golden Record contents, NASA Science
- Kuwaiti oil fires, Wikipedia
- Nuclear War and Climatic Catastrophe: Some Policy Implications (Foreign Affairs, Winter 1983/84), Carl Sagan
- Voyager 1's Pale Blue Dot, NASA Science
- Baloney Detection Kit: Carl Sagan's rules for evaluating claims (from The Demon-Haunted World, chapter 12), Maria Popova, The Marginalian
- Vintage NASA: See Voyager's 1990 Solar System Family Portrait Debut, NASA JPL