What Would Need to Be True
Neuroimaging showing that mushin states and berserker/RAGE states involve identical regions of prefrontal suppression rather than different patterns
Behavioral evidence that the content of the resulting state (skilled vs. disinhibited) correlates with prior training type rather than with the induction method
Or conversely: evidence that the induction path (arousal vs. stillness) produces measurably different state signatures even when the training content is held constant