After seeing the results of an investigation by Rav Avraham Steinberg Rav Shlomo Zalman Auerbach came to the conclusion that “The communicative method used for severely mentally retarded or autistic people (facilitated communication) should be used as a limited clinical tool but should not be abused for mystical purposes” (Assia, no. 57-58, 1996 pp. 12-13.). In fact, many medical experts consider FC to be nonsense and that the practitioners put words in the children’s mouths (see the Skeptic’s Dictionary on the subject).
BTW, Rav Mordechai Eliahu said that WW2 was Gog uMagog. When some people came to him and tried to convince him otherwise he told them that if it did not already occur they would have to experience it. They accepted his ruling.