Factual error: In the scene where Nic Cage sits at his computer and discovers what will destroy the world, he describes it as "A super-flare. A 100 microtesla wave of radiation that would destroy our ozone layer, killing every living organism on the planet." First, "tesla" is a measure of magnetism, not radiation, and 100 microtesla is a very weak magnetic field - an MRI machine uses around 3 Tesla. Second, destruction of the ozone layer would eventually kill all life on the planet, slowly, through radiation poisoning. It would not burn the planet to a cinder, as depicted in the movie.
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