Is Kol HaTor an authentic book? Because it looks like it was published in 1968. Why did it take so long for this book to get published?
Kol HaTor deals in depth with the pro-active and natural type of redemption, not waiting passively for God or Mashiach ben David, but to make Aliya, and actively buy and work the Land of Israel to bring the national redemption of Israel. My friend Rabbi Dr. Aryeh Morgenstern, and Rabbi Dr. Rephael Shochat, who are the authorities on the writings of the Vilna Gaon and his students, have published extensively proving that it’s irrelevant which one of the Gaon’s students worded the book, but the content is undoubtedly based upon the ideas of the Vilna Gaon, quoting many parallel ideas found in his books and those of his 511 students, who began making Aliya in 1808 (many count this as the First Aliya, which preceded that of 1882 by 74 years! The content began circulation in the first half of the 20th century, and was printed in 1947/5707, but really achieved fame when reprinted after the 6 Day War in 1968, with the fruition of many of the predictions and teachings. As is often the case, manuscripts take a while to get printed (e.g. the Gaon’s commentary on the Talmud Yerushalmi is just being printed now). Although you may be interested in the math and gematriyot there, that’s not the main point of the book. The controversy around the book within Haredi circles, is not only because of the strong Zionist element, but the book reveals how much the Vilna Gaon believed in the importance of learning math and the sciences (no surprise to all of the biographers of the Gaon).