Bill Gates and Elon Musk Trade Barbs Over Mars Colonization, Electric Trucks
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Bill Gates says Elon Musk's ideas about colonizing Mars are "bizarre" and unrealistic.
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Gates believes electric semi-trucks are not economically viable, contradicting Tesla's plans.
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Gates shorted Tesla stock, angering Musk who called Gates "super mean."
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Musk called Gates "categorically insane" and "an asshole to the core" in texts to biographer.
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Despite disagreements, Gates acknowledges Musk's contributions to science and innovation.