To Rabbi Menachem Shmei
You make a good point, to wit, how can Rabbi Schachter know to whom Lubavichers daven? The answer is simple. Because of his Talmudic genius, he has Ruach Hakodesh and Malachim revealed this information to him. Similarly, you can ask how Rav Shach knew what was going on in Brooklyn. So we know that he was the Godol Hador which means he was the Moshe Rabbeinu Hador and so he had the same level of Nevuah as Moshe and this allowed him to see what the Rebbe was doing.If you think that’s ridiculous then understand what Jews think when Lubavichers claim that the Rebbe is god. Checkmate.
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