This startup wants to build a fusion reactor — on a boat

There’s only one fusion device on earth that has been able to meet a key scientific threshold, but Martime Fusion CEO Justin Cohen is already preparing to put a fusion reactor on a boat. Stay with me — it’s not entirely far-fetched. Thanks to advances in AI, computing, and superconducting magnets, fusion power is closer than ever to commercial reality. It’s increasingly looking like fusion is more a question of “when” not “if.” And when it does happen, it promises to deliver large amounts of clean power from a plentiful fuel source — water. Putting a reactor on a ship isn’t necessarily unreasonable, either. Today, submarines and aircraft carriers powered by nuclear fission reactors routinely prowl the seas. They’re quiet, powerful, and can operate for…

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