Re: Really weird Continuity error. HUGE SPOILERS!
Well, in Khan's case, I approve of every last change...including the fact that he's no longer retarded. But YMMV, of course.
I do not kill with my gun. He who kills with his gun has forgotten the face of his father. I kill with my heart. —The Gunslinger's Creed, The Dark Tower
It was a nice day ... AND THEN EVIL CAME!— The Collected Works of Stephen King, condensed version