Could we all perceive reality in a richer way? iStock hide caption

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Extrasensory

In this hour, TED speakers question whether we can experience the world more deeply by not only extending our senses — but going beyond them.

Friday

"You exist in this galaxy, you exist around this star, you exist on this planet, you are a member of this species — and all of these are part of knowing what you are." - David Christian iStockphoto hide caption

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