TED Business The most powerful predictor of team success | Rafael Chiuzi
23 snips
Sep 22, 2025 
Rafael Chiuzi, an organizational psychologist and TEDx speaker, dives into the concept of psychological safety in teams. He discusses how childhood fears of speaking up can resurface in the workplace, stifling creativity and communication. Chiuzi outlines three actionable steps to create an environment where curiosity thrives: leadership role-modeling, monitoring silence signals in meetings, and fostering safety in personal lives too. With real-world examples from Chernobyl and Boeing, he makes a compelling case for breaking the silence barrier.
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Paralyzing School Pop Quizzes
- Rafael Chiuzi recalls the terror of surprise oral quizzes in school that made him avoid speaking up.
- That fear pushed him to stay silent and ask peers later instead of risking judgment in class.
Chernobyl Engineers Were Silenced
- Rafael describes engineers at Chernobyl who were terrified and silenced by threats when they tried to raise concerns.
- That culture of fear contributed to catastrophic failures when people could not speak up.
Ignored Warnings At Boeing
- Rafael recounts Boeing 737 MAX engineers who raised safety concerns but were ignored by leadership.
- Their warnings went unheeded and preceded tragic crashes where hundreds died.
