David Spiegelhalter¶
Summary¶
Sir David Spiegelhalter, Emeritus Professor of Statistics at the University of Cambridge. Leading expert on risk communication and Bayesian statistics.
Contributions¶
"The Power of Bayesian Reasoning" (BBC Ideas, January 2026)¶
Explained Bayesian reasoning through: - Historical examples: Enigma code cracking, spam filters - Breast cancer screening example — showing how 90% accurate tests produce 75% false positive rates - The debate between Bayesian and frequentist approaches in science - The idea that "we have Bayesian brains"
Key insight: "Bayesian ideas reflect what it means to be human. We live in a world of uncertainty, but we always have prior expectations of what might happen next, and we revise that uncertainty as we learn from experience."