1) The Geon from Vilnius has a few ideas which I wanted to share.
that God runs the world with a different trait from time to time.
Now I shared this with someone and they thought I meant in cycles. Now cycles might be an idea but it is not what the Gra meant from what I can tell. The cycle idea might help us understand the rise of civilization. The Sumerians [cities and infrastructure], the the Jewish people [the Ten Commandments and the Law], the the Greeks (science, art, music, philosophy, politics), then the Romans, and then the Renaissance.
2) The Torah portion of the week corresponds to every hundred years. That is why the Gra found himself mentioned in Tetze. And also we find the Holocaust in Ki Tavo with the curses. That put us in a parsha that mentions the verse "Moshe called to Joshua" {VaYelech}.