Yeah. I saw it on History Channel, a long ways back - so take it, for what it's worth. It seems plausible. Hitler and the Nazis were big on the Occult, and Psychic phenomena. So MI-6 got to his goto psychic, and got a delay - waiting for the right numerology or stars, and apparently it worked. 2 weeks delay, in the Summer/Fall, and a long slog through Ukraine and Belarus - meant freezing to death at Stalingrad, apparently.