Top thinkers and scientists speak to today's global concerns.

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Michio Kaku, best-selling author and physicist, imagining the not-so-distant future, offers his projections for advancements in humanity's understanding of the brain over the next century. Kaku envisions a world in which progress in neuroscience and biotechnology will demystify the human mind.
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As the director of one of a world renowned institute for scientific research -- the Institute for Advanced Study -- Robbert Dijkgraaf is a pioneer in the field of mathematical physics. This string theory specialist draws from his experiences to elucidate current advances in physics.