>the original outline had 3 arcs (war of five kings, dany's invasion, white walker invasion)
>after writing 5 books, he still hasn't started arc 2
>for no reason at all, insists on a 7 book limit
>keeps rewriting book 6 over and over because cramming arc 2 into a single book isn't working
The lack of an ending is a self inflicted wound that he cut for no reason.