This sense of existential angst takes literal form when Sam is made an errand boy, and later called one quite directly to his face, told in fact that all he really ever was in the past was an errand boy, not a man of consequence (so to speak).

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And there are questions too of whether hydroelectric schemes are the best way to power a region that regularly sees droughts and may in future see them even more frequently as a consequence of man-made climate change.

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Undaunted, Barash explores various ways in which religion might have been advantageous for early man, or a consequence of some other advantageous trait.

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