The Michael Shermer Show

Truth Still Matters (And Here's Why)

4 snips
Jan 27, 2026
A tour of how people conflate meaning, stories and confidence with facts. Thought experiments and historical examples show why factual truth shapes actions. Discussions cover Bayesian updating, when to demand extraordinary evidence, and distinguishing empirical claims from mythic or moral meanings. Topics also include consciousness, free will, UFO evidence, and why changing your mind is a strength.
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INSIGHT

Truth Prevents Dangerous Mass Action

  • Truth matters because believing falsehoods can drive mass action with real harms, like the January 6th riot.
  • Rationality and skepticism act as societal defenses against organized irrationalism and mob action.
ADVICE

Treat Truth As Provisional And Evidence-Based

  • Define truth provisionally and update beliefs when evidence changes; changing your mind is a virtue.
  • Demand evidence for claims and dismiss assertions made without testable support.
ANECDOTE

Sagan's Invisible Dragon Example

  • Shermer retells Sagan's invisible dragon thought experiment to show unfalsifiable claims are equivalent to no claim at all.
  • He uses Hitchens' dictum: claims asserted without evidence can be dismissed without evidence.
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