So this theory is an original one means i did not saw it online i just came up with
what if game of throne in a time loop AKA time is repeating it self (not figuratively but for real)
The story is as following
Children of the forest creating white walker after the first men fought them
Then whitewalker raise and attack the men until they lost to the chosen one or Azor Ahai whatever
Bran then built the Wall and called bran the builder before he died ,he warg a ravain
then reborn as Bran son of Ned (technically now he is Ned Grand Grand father and son at the same time)
and the story goes as the books and in the last two book the whitewalker destroy the wall and another Azor Ahai will win the fight but the kingdom will be destroyed and civilizations lost
Later on Bran will build the wall and will find Bloodraven putting him in the tree, resurrecting the children of the forest and kicking out the Andals.
Now we back to the start of the story where first men fought children of the forest
My point is the life spam of the Song of Ice and Fire is around 5000 and then it will be back to zero and from zero to 5000 and so on
