Theoretical physicist, best-selling author, and all around cool guy Michio Kaku returns to Big Think to discuss the science of dreaming, as well as everything Freud got right about our subconscious.

"The only thing that's been a worse flop than the organization of nonviolence has been the organization of violence."

"The oldest and strongest emotion of mankind is fear, and the oldest and strongest kind of fear is fear of the unknown."

"Nobody’s going to pay for smart in the future because the smarter the doctor, the smarter the lawyer, the smarter the engineer, the smarter the financier, that’s all going onto software.  So we move up the ladder and we say that what we really value and what will rise to the top is intelligence.  And what is that?  That’s the ability to figure things out that you’ve never learned before." -Futurist Edie Weiner, from her Big Think interview

"There is no part of planet Earth which has so recently arrived on our desk as a challenge and as an opportunity. So therefore, cooperation in the Arctic is one of the most crucial issues of the 21st-century" -Ólafur Ragnar Grímsson, President of Iceland, from his Big Think interview

Despite knuckle-gripping tension and mass nuclear proliferation during the Cold War, not a single detonation has caused mass civilian casualties since 1945. According to investigative journalist Eric Schlosser, such good fortune is nothing more than blind luck.

There are two reasons why President Grímsson considers the Arctic the next major environmental, political, and economic playing field: climate change and the region's untapped natural resources.