Vijay Balasubramanian University of Pennsylvania, SFI The human brain consists of a 100 billion neurons connected by a 100 trillion synapses. In its computational function, each neuron is a simple electrical device. In this sense it is no different, in its conceptual essence, from a transistor or a diode in a silicon microchip, converting input signals into ephemeral voltage pulses that transmit to other neurons. And yet, the collective effect of these tiny electrical flutterings creates the intelligent mind, with its astonishing capacity for perception and action, memory and imagination, affection and indifference. In the words of Ramon y Cajal (1854-1932), a founding figure of neuroscience, neurons are "the mysterious butterflies of the soul, whose beating of wings may one day reveal to us the secrets of the mind." In this talk, Vijay Balasubramanian will explore current ideas about how this transmutation occurs. Learn more at santafe.edu Follow us on social media: / sfiscience / sfiscience / santafeinstitute / santafeinstitute / santafeinstitute Subscribe to SFI's official podcasts: complexity.simplecast.com aliencrashsite.org