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by thangalin 1134 days ago
https://en.wikipedia.org/wiki/Fusion_energy_gain_factor

> On December 13, 2022, the United States Department of Energy announced that NIF had exceeded the previously elusive Q ≥ 1 milestone on December 5, 2022. This was achieved by producing 3.15 MJ after delivering 2.05 MJ to the target, for an equivalent Q of 1.54.