The Persistence of Memory

The Persistence of Memory is the eleventh episode of Cosmos A Personal Voyage. It first aired 7 December 1980 on PBS.

Summary
Carl Sagan explores the idea of intelligence in the concepts of computers using bits as their basic units of information, whales in their songs and their disruptions by human activities, DNA, the human brain and the evolution of the brain stem, frontal lobes, neurons, cerebral hemispheres, and corpus callosum under the Triune Brain Model, and man-made structures for collective intelligence, including cities, libraries, books, computers, and satellites. There is also speculation on alien intelligence and the information conveyed on the Voyager Golden Record.