Stephen Hawking says our only hope of survival is to escape Earth

Nuclear war. Artificial intelligence gone awry. Extreme climate change. Genetically engineered viruses. The list goes on and on. Celebrated physicist Stephen Hawking insists he’s an optimist, but at the same time he believes humans — or their AI creations — eventually will wreck Earth. “Although the chance of a disaster to planet Earth in a given year may be quite low, it adds up over time and becomes a near certainty in the next thousand or ten thousand years,” he told Britain’s Radio Times this week in advance of a high-profile lecture on black holes. “By that time we should have spread out into space, and to other stars, so a disaster on Earth would not mean the end of the human race,” he continued. “However, we will not establish self-sustaining…


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