Yahel Dror Ben-Baruch

1 Introduction Perceptual biases linked to fear have been documented since the dawn of history. The Bible, for example, tells a story of the twelve spies who were sent to explore the land of Canaan before entering it. When they returned, they reported the land as flowing with milk and honey. They also described the inhabitants of the land as giants with unbeatable power, and added that they felt like grasshoppers beside them.