Yitzhak Y. Melamed • Jewish Review of Books
…Fraenkel’s attempt to harmonize the apparently conflicting views on the tzimtzum is highly valuable. In the first place, Fraenkel’s claim is well argued and meticulously grounded in the sources, and thus deserves serious consideration. Second, Fraenkel’s reading goes against the main trend of interpretation in both the academic world of Kabbalah studies and that of Chabad historiography, which follows the last Lubavitcher Rebbe in stressing the opposition between Rabbi Schneur Zalman of Liadi and Rabbi Chaim on tzimtzum….
It is a work of both real piety and ingenious scholarship.
Fraenkel is a computer scientist by training and profession as well as an independent scholar, and it would be hard to overestimate the amount of intellectual effort, courage, precision, and diligence invested in these two volumes. Books such as this are rare, but if I may quote the words of another God-seeking Jew: “All things excellent are as difficult as they are rare.”