Inner Cosmos with David Eagleman

Ep117 "What does brain science have to do with free speech? (with Greg Lukianoff)" (with Greg Lukianoff)

12 snips
Aug 18, 2025
Greg Lukianoff, a constitutional lawyer and president of FIRE, passionately discusses the intricate relationship between brain science and free speech. He highlights the necessity of defending free expression to promote cognitive growth and societal safety. The conversation tackles the challenges faced on college campuses where free speech is increasingly suppressed. Lukianoff examines the implications of cancel culture and the role of literature in truth-seeking, along with the potential effects of AI on free dialogue and diverse perspectives.
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INSIGHT

Free Speech Expands Internal Models

  • David Eagleman argues free speech expands our internal models by exposing blind spots.
  • Hearing uncomfortable ideas polishes cognition and reveals territory you didn't know existed.
INSIGHT

Emotional Reasoning Mimics Threat Response

  • Emotional reasoning equates disagreement with harm and triggers primitive threat circuits.
  • The amygdala treats offensive sentences like threats, pushing people to shut down opposing views.
INSIGHT

Silencing Radicals Radicals Concentrate

  • Censoring speech can concentrate extremists together and intensify radicalization.
  • Hiding unpopular views creates echo chambers that make societies less safe, not safer.
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