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" "Evolution does not mean improvement. There is no ladder of progress, no foresight, no plan, no goal. Evolution is the unintelligent and indifferent process of life changing over time. It doesn't prepare lifeforms for the future. It can't because the future is unknown. With evolution, the only winning is being alive right now and the only losing is being extinct. Every species on Earth today is tied for first. We can't rank contemporary lifeforms as more or less evolved than others. And we can't rank the long-term survivability of species because today's big flashy advantage could be tomorrow's death sentence. The mighty human brain, for example, might turn out to be a doomsday device. If we destroy ourselves with nuclear weapons then big primate brains would have been just another evolutionary dead-end.
Guy P. Harrison (born October 8, 1963) is an American author of multiple bestselling books. He resides in the United States and is known for his written works on science, critical thinking, anthropology, history, race, and nature.
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All known life on Earth today is fundamentally similar, is genetically related, and shares descent from a single-celled common ancestor that lived at least 3 or 4 billion years ago. . . . Sometimes I get so wrapped up in thoughts about evolution, biodiversity, and the surprisingly close relationships between lifeforms that I look around and see only slight variations of genetic code.