Video


More Sex is Safer Sex

Ciudad de Las Ideas
Puebla, Mexico
November, 2008


The Greatest Story Ever Told

Hatton Sumners Distinguished Lecture, September 2013


Does the World Have Too Many People, and How Would we Know?”

Hayek Memorial Lecture at the Institute for Economic Affairs
November, 2018


Witwatersrand Math Competition

Address to the winners
November, 2020


Why Is There Something Instead of Nothing?

Philadelphia Association for Critical Thinking
September, 2020


Truth, Provability and the Fabric of the Universe

Free Thought Festival
University of Wisconsin, Madison
March 17, 2018


Four Talks at Cato University, August 2012:

The Greatest Story Ever Told: The Power of Economic Growth
How Markets Work
Externalities
The Power of Incentives


Elbow Catch


Double Star


In Memory of Alan Stockman

Stockman Memorial, 2010


Religion on Trial

Debate with Dinesh D’Souza at FreedomFest 2010

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