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Guest Post: On Changing Your Mind

An Excerpt From The Blank Slate, By Steven Pinker

When law enforcement vanishes, all manner of violence breaks out; looting, settling old scores, ethnic cleansing, and petty warfare among gangs, warlords, and mafias. This was obvious in the remnants of Yugoslavia, the Soviet Union, and parts of Africa in the 1990′s, but can also happen in countries with a long tradition of civility…

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Guest Post: The Limits Of Our Imagination

An Excerpt From Many Worlds In One, By Alexander Vilenkin

A striking feature of the new worldview is the existence of multiple “other worlds” beyond our observable region. Some of them are rather uncontroversial. Very few people, for example, would question the reality of other O-regions…

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