The story of Cosmos is also the story of human beings. For the vast majority of our history as a species, we were wanderers, small hunter-gatherer bands. Civilization is a recent innovation, arising within the last few thousand years, and science is more recent still, appearing only in the last few hundred. But in just those few short centuries, we've made dramatic strides, from wooden sailing ships to space shuttles, bloodletting to bionic limbs, quill pens to the Internet. We've drawn back the curtain on ancient mythologies and glimpsed the true immensity of time and space. Compared to that vastness, we're unimaginably small and insignificant; yet we possess an intelligence and a power of understanding that, as far as we still know, is unique among all the countless worlds. As Carl Sagan said, "We are a way for the cosmos to know itself."
However, not everyone accepts this as a positive development. There have always been those who prefer a small, comprehensible cosmos, with human beings placed firmly at the center. The religious belief systems that posit such a universe were our first, fumbling attempts to explain the origin of the world, and they rarely share power gladly. Those who clash against conventional wisdom, who dare to suggest that the cosmos holds wonders undreamed of in conventional mythology, have always found themselves in grave peril from the gatekeepers of dogma who presume to dictate the thoughts human beings should be permitted to think.
"Man will never be free until the last king is strangled with the entrails of the last priest."
- Denis Diderot
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