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The Fermi Paradox, put simply, asks why none of the other supposed alien species in the universe have contacted us. Bill's answer? We're not listening hard enough.

The Venerable Losang Samten, a renowned Tibetan scholar and a former Buddhist monk, stresses the virtues of being mindful, kind, and patient.

Philosopher Daniel Dennett explains how the optimal strategy for winning a game of rock-paper-scissors isn't necessarily the optimal strategy for leading one's life.

Philosopher Daniel Dennett take us through one of his "favorite bad thought experiments," an investigation of free will based on the sci-fi film "The Boys From Brazil."

Dennett rebuts the argument that neuroscience implies we don't have free will.

Philosopher Daniel Dennett investigates the theories related to how the brain represents ideas and beliefs while pondering an Inception-like situation in which beliefs are surgically inserted into a patient's brain.

Daniel Dennett explains how intuition pumps (often referred to as "thought experiments") help guide philosophers' curiosity and thinking.

Instead of returning anger with anger, Robert Thurman advocates the practice of lovingkindness, a translation of the Pali word mettā that is found in the original Buddhist texts.

The famous biologist discusses his life's work in conservation and his efforts to save the ecosphere.

Philosopher Slavoj Žižek argues that our current brand of global capitalism is quickly outgrowing democracy. This leads to a bevy of social and geopolitical concerns all related to the public commons.

Futurist and learning expert Elliott Masie explains how setting up hackathons can help successful companies find unique and creative solutions.

Who launches a nuclear weapon if the president has been killed? Investigative journalist Eric Schlosser explains the chilling history of American nuclear authority and chain of command.

Interest rates are low. Construction unemployment is high. There's no better time to invest in major infrastructure projects. Larry Summers asks what we're waiting for.

XAPO CEO Wences Casares discusses how most of the regulations needed for bitcoin are already in place for gold and other currencies.

Futurist Vivek Wadhwa predicts change "at a scale which is unimaginable before," thanks to advances in technologies like robotics and 3D printing. "New trillion dollar industries will wipe out out existing trillion dollar industries," he says. "This is the future we’re headed into, for better or for worse."

Fareed Zakaria asks President Bill Clinton if it is possible to learn how to successfully work with others.

The former Secretary General of NATO explains how the alliance approaches terrorist threats and how the future fight against the so-called Islamic State will look.

The founder of MIT's Media Lab imagines a future in which information and knowledge can be delivered to the brain through the bloodstream.

The ABC correspondent explains that you can integrate short bursts of meditation into your life by way of purposeful pauses.

The acclaimed economist talks oil prices, energy independence, and America's unavoidable market vulnerability.