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Designs predict high gain on a larger machine, but whether instabilities and mixing allow it is unknown.","posed_since":"2012","precise":"In magnetized liner inertial fusion (MagLIF: axial seed field of order $10^{5}\\ \\mathrm{G}$, laser-preheated D or DT fuel, liner imploded by a current pulse of about $20\\ \\mathrm{MA}$ on the Z machine), magnetic insulation lowers the required fuel areal density. Determine whether integrated designs reach ignition and gain $G\\ \\text{above}\\ 10$ at drive currents of $40\\ \\text{to}\\ 70\\ \\mathrm{MA}$, given measured limits from magneto-Rayleigh-Taylor growth, preheat-induced mix and magnetized electron heat transport (Nernst advection). An answer is a radiation-MHD design validated on Z data at $20\\ \\mathrm{MA}$, or a demonstrated scaling showing it fails.","problem_ref":"d9ba2b5cafb58399ed002cedfc051549d81fc48db992cd4eeab95b3e4557ef5b","references":"","settled_by":"Validated radiation-MHD scaling from Z experiments to a next-generation pulsed-power driver, then an experiment on such a driver.","status_note":"Slutz and Vesey (2012, https://doi.org/10.1103/PhysRevLett.108.025003) predicted gains well above 10 at about 60 MA; no driver at that current existed as of mid-2026.","title":"Can magnetized liner inertial fusion reach high 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