sechel > Dr berger knows more about Christianity (which is an issur to learn in this weeks parsha)
I skip your words of disrespect to a Talmid Chacham that for some reason made thru our generous mods or maybe only some semichos are protected here?), but here you are misinformed. It is not assur to learn it in order to argue and this is exactly what R Dr Berge is doing. Ramban participated in a disputation and won it, do you think he did not prepare for that meeting?