This is an excellent comic at Abstruse Goose that illustrates the depth of our evolutionary history. The ending is a downer, though; shouldn't the protagonist have been enlightened and encouraged by this information?
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As a scholar working in an abstruse subject I live a life largely divorced from what concerns most people. We have no newspaper subscription. I really don't have much of a clue. But I am aware of the poor state of the world economy. Now, how has it affected me so far?
"I know perfectly well that at this moment the whole universe is listening to us, and that every word we say echoes to the remotest star." -Jean Giraudoux
Surviving the World - Lesson 821 - Santa Claus
Many Worlds, many presents.