Japanese billionaire Masayoshi Son was so swept up by the artificial-intelligence frenzy in 2025, he placed reservations for a large chunk of the U.S. market for gas power plant turbines, grabbing hold of a key cog in the AI electricity machine. He overdid it. Like an overeager miner who tries to corner the market for picks and shovels in a gold rush, Son’s SoftBank Group ordered so many turbines that even after fully supplying the world’s largest gas power plant, it was left with reservations for far more than it could possibly use. The global tech investor switched course on…

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