"Doomsday Scenario is Unlikely" -- USA Today

Via USA Today:

So much for staying up at night worrying about "a transition to a lower vacuum state propagating outwards from its source at the speed of light," one of their catastrophe scenarios. But insomniacs still have some fodder, the pair concludes. Their estimate "does not apply in general to disasters that become possible only after certain technologies have been developed, for example, nuclear annihilation or extinction through engineered microorganisms. So we still have plenty to worry about."

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