In the famous 1962 book "The Dawn of the Magicians", it quotes seers who claimed that in the late 50s, c1957, a person was born who would change world history.
I like to think that Chaim born 25-12-56 is a counterbalance from the side of kedusha, to his contemporaries Osama bin Laden born 10-3-57 and Ahmadinejad born 28-10-56 from the side of rishus and klippah.
One thing's for sure: Chayim would be a match for them in ideology, strength of belief, fervour, ruthlessness and intrepidity! It is known that those born at the end of the 1954-57 period, when Pluto was exiting after its 25 year stint in Leo, can be particularly dangerous and ruthless!
The Gemara talks much about astrology. Does Chayim know the hour he was born? Chayim's birth chart would be very informative, for his past and future, though halachically frowned upon, it might be used in extremis.