What You'll Learn:
Seventy thousand years ago, organisms from the species Homo sapiens emerged on the scene. The study of their development and activities is called history. In his ambitious study, Yuval Noah Harari explains that human history has been propelled forward by three revolutions: the Cognitive Revolution, the Agricultural Revolution, and the Scientific Revolution. Humans have shown their capacity for profoundly impacting their environment, and each of the three revolutionary thresholds that we have crossed increased this capacity. Humankind ignores its powerful and often destructive tendencies at its own peril and the planet’s, but there is still reason to hope for a better tomorrow. Time will tell which path humanity will take.