Charan Ranganath (Why We Remember: Unlocking Memory's Power to Hold on to What Matters) is a neuroscientist. Charan joins the Armchair Expert to discuss the mechanics of memory, how AI learning is different than human learning, and the influence that present context has on memories. Charan and Dax talk about the relationship of imagination to memory, the problems with hypnosis, and repressed memories. Charan explains how sleep can conceptualize memories, the ways photos can influence memories, and how traumatic memories affect the brain.

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