What do people make of the changes to the Master's back-story? While the changes makes sense within the context of The end of time, overall I prefer the Master to have agency and like the Doctor be who he is because he made choices about his life rather than be the broken guided puppet of the time-lords and the victim of what amounts to child abuse.
I don't think the duality of the characters works in the same way when the Master is part-victim and someone suffering from (artificially induced) mental illness rather than master of his own fate.
I don't think the duality of the characters works in the same way when the Master is part-victim and someone suffering from (artificially induced) mental illness rather than master of his own fate.