- "Tritium is only necessary because the magnetic confinement is poor." Startup hype notwithstanding, the other fusion reactions are only incremental improveme

- "Tritium is only necessary because the magnetic confinement is poor." Startup hype notwithstanding, the other fusion reactions are only incremental improvements over D-T, in terms of emitting less neutron radiation. From the standpoint of radiation protection it's all utterly moot—you'll never have a fusion reactor in a "rice-maker" to "power homes and vehicles". The amounts of radiation are absurdly extreme, and of an exotic kind that's really, really, unshieldable. (Infamously, the whole point [0] of the neutron bomb was a Cold-War tactical antitank weapon. Something that heavy steel tanks, envisioned to be in a nuclear land war in the Fulda Gap or whereever, would have no chance of surviving—not even with all the efforts the superpowers threw at the military challenge). A sobering fact for those unfamiliar with nuclear physics. The point of less-neutronic nuclear fusion reactions isn't to render them mild enough not to disintegrate humans. It's to make them mild enough to not disintegrate steel [1]. [0] https://en.wikipedia.org/wiki/Neutron_bomb#Use https://en.wikipedia.org/wiki/Neutron_bomb#Use [1] https://www.nature.com/articles/nphys3735 https://www.nature.com/articles/nphys3735