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I Looked at the New Cold Fusion Breakthroughs. It's Complicated.

Sabine Hossenfelder

I Looked at the New Cold Fusion Breakthroughs. It's Complicated.

Summarised with Bite · 5 min read

IntroQuick summary

Cold fusion startups are raising millions worldwide, claiming revolutionary energy breakthroughs. But a closer look reveals two fatal flaws: no nuclear products detected, and the heat comes from hydrogen embedding in materials, not fusion at all.

Summary3 sections

0:00 – 3:18

The Cold Fusion Gold Rush Nobody's Talking About

Picture this: a Japanese company just received $6 million from the Tokyo government, an Italian startup claims to redefine energy with only water and electricity, and an Indian firm promises "unprecedented energy gain ratios." This isn't science fiction. Right now, more money flows into cold fusion research than ever before. The US government funds it. The EU spent millions. Japan throws cash at it. Startups from Italy to India claim commercialization is months away. Cold fusion, or low energy nuclear reactions (LENR), proposes generating energy from nuclear fusion at mere hundreds or thousands of degrees Celsius, not the millions required by conventional reactors. The appeal? If materials could somehow boost the probability of atomic nuclei fusing at low temperatures, we'd solve the energy crisis overnight. The problem? There's no proof it's possible, only that quantum calculations of electron orbitals in lattice defects are so complex we can't rule it out definitively. Like room temperature superconductivity, cold fusion sits in what one scientist calls "a god of the gaps," the incalculable region where hope thrives but evidence doesn't. The Japanese company Clean Planet exemplifies the trend. They layer nickel and copper, pump in hydrogen gas, heat the stack past 1,000 degrees while creating a hard vacuum, and claim to extract excess Watt-level heat. Their papers argue the energy released per hydrogen atom exceeds what chemical reactions allow, therefore it must be nuclear fusion. By that logic, as one physicist notes, "I don't know where my money went therefore billionaires are evil."

2 more sections in the app

  • 3:18 – 6:09The Two Fatal Flaws Every Cold Fusion Claim Shares
  • 6:09 – 7:17The One Result That Actually Survived Peer Review
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