The president of Iceland explains the secret to the Nordic countries' recent economic and social success. Social welfare programs such as free access to education and healthcare have proved to be a boon to the free market economy.

Tech entrepreneur Brad Templeton returns to Big Think to discuss how Bitcoin disrupts the finance industry.

"I want to work in revelations, not just spin silly tales for money. I want to fish as deep down as possible into my own subconscious in the belief that once that far down, everyone will understand because they are the same that far down." -Jack Kerouac

Bill Nye discusses the Rosetta comet landing, ruminates on the expanse of potential discoveries it could open up, and explains why this current space adventure may one day prevent a major global tragedy. 

Canadian physician Lt. Col. John McCrae composed this poem after presiding over the funeral of a friend killed at the 2nd Battle of Ypres in 1915. 

"The degree of civilization in a society can be judged by entering its prisons."

Pulitzer Prize-winning journalist Sheryl WuDunn recently visited Big Think to discuss her new book, A Path Appears.