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Artificial You by Susan Schneider

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CHAPTER SEVEN

A UNIVERSE OF SINGULARITIES

In your mind’s eye, zoom away from Earth. Envision Earth becoming but a “pale blue dot” in outer space, to use an expression of Carl Sagan’s. Now zoom out of the Milky Way Galaxy. The scale of the universe is truly staggering. We are but one planet in an immense, expanding universe. Astronomers have already discovered thousands of exoplanets, planets beyond our solar system, many of which are Earthlike—they seem to have the sort of conditions that led to the development of life on Earth. As we gaze up into the night sky, life could be all around us.

This chapter will illustrate that the technological developments we are witnessing today on Earth may have all happened before, elsewhere in the universe. ...

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