sechek83: “why do I claim the Rebbe was Baki in almost every Sefer printed before the war? Listen to his sichos, and look at them printed with מראה מקומות,
An average farbrengen the Rebbe quotes 2-300 m”m no hesitation…”
As I’ve written in the past, the Lubavicher rebbe had a team of people who searched for marei mekomos for the sichos that were published. Although even I admit that the L rebbe had a lot of Torah knowledge, I still venture to say that any decent rosh yeshivah who had a team of talmidim writing and working for him, could print derashos with hundreds of marei mekomos.
And allow me to point out that you wrote that he knew virtually ever sefer that was printed before the war by heart. That claim is baseless… unless of course you’re a Lubavicher.