As a very much non-nuclear engineer, I found this video [1] explaining different fuels, size, magnetic field strength, and the orders of magnitude physics and engineering that goes into current fusion efforts.
Curious where Helion would put themselves on the nτE vs ion temperature plot he uses to evaluate how feasible a technology is.
[1] https://www.youtube.com/watch?v=L0KuAx1COEk [2] https://en.wikipedia.org/wiki/Fusion_energy_gain_factor