Question

In the book VeTzaddik Yesod Olam by Rabbi Chaim Vital on the Book of Ruth
he explains the verse, “And if the good one does not wish to redeem you, then I will redeem you, as the Lord lives; lie down until the morning”
that this verse is the secret of the redemption:
that if we do not merit redemption through repentance and good deeds (“if the good one does not wish to redeem you”), in any case there will be redemption (a redemption “for My own sake I will do it”), and “as the Lord lives” it will not be delayed beyond the date…
What is that date?
The year is 5708 — “lie down until the morning” has the numerical value of 5708.
And the day is?
“Foundation within Beauty” — which is the 5th of Iyar.
 
So here we have that the Ari, or at least his student, knew how to hit the exact date of the declaration of the state and its establishment — day and year (spiritual state?).
Needless to say, this appears in all editions of the book, which has been printed for hundreds of years.
This raises a few questions for me:
1. Is it possible that God reveals things like this to people who lived here several hundred years ago?
2. What does this say about people like the Ari and Rabbi Chaim Vital, who studied the Zohar and did not know how to identify who the author was, and attributed it to Rashbi; and also about various stories in Shivchei Maharhu that are extremely puzzling… Yet on the other hand they supposedly knew to swear in God’s name about the exact day and year when the redemption (or its beginning?) would come?