The author mentions that George R.R. Martin uses a similar set-up to separate work from leisure.
Then I think: George RR Martin is a notoriously slow writer. Many are legitimately worried he will not finish GoT before heart disease takes the beloved author.
Yet GOT will last generations upon generations. There will be many reboots, rewrites, and scripts all based upon the work he has done long after he is gone. That is to say sometimes the best things in life take time. Most of our software projects won't make it past one year.
At the end of one of his books the author notes that the reader might be asking "Where is Tyrion?" The entire book had not contained my favorite character of the Game of Thrones series: Tyrion. The author continues, and I paraphrase "The story has a lot of plot lines and I decided to separate them into two books. No worries the next book will come out in a few months."
Then I think: George RR Martin is a notoriously slow writer. Many are legitimately worried he will not finish GoT before heart disease takes the beloved author.