Are we condemned to repeat history?

Philosopher George Santayana said that 'Those who cannot remember the past are condemned to repeat it.' If that’s true, then can an extensive understanding of past events help human civilization avoid future catastrophes? In this episode of Stuff to Blow Your Mind, Robert and Christian turn to the field of cliodynamics and its attempts to identify the cycles of social unrest and violence. Can we avoid the terror of history?

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