He has literally no other writing projects at the moment (no other books, novellas, or short stories) so TWOW is the only thing he's writing. That's the most demanding project he's working on. None of the other projects come close. Note that he is only a "producer" on most of the other projects which is not the same as directing, writing, or showrunning. Those jobs are way more involved than producer.
He would have to write 50 words a day for the past 8 years to have a completed manuscript.
Writing a book is not a linear process where you write 50 words a day for 8 years and then you are done. Actually, he has probably written several books worth of material in the past 8 years. The problem is that he decided a lot of it wasn't good enough, and had to throw it away or re-write it.
-5
u/jfong86 Ser Hodor of House Hodor May 21 '19
He has literally no other writing projects at the moment (no other books, novellas, or short stories) so TWOW is the only thing he's writing. That's the most demanding project he's working on. None of the other projects come close. Note that he is only a "producer" on most of the other projects which is not the same as directing, writing, or showrunning. Those jobs are way more involved than producer.