He's building off of his primary post called Ragnarök. 

I didn't like how the author just assumed that Jaime and Tyrion are not full brothers, there is very little prof to suggest this, other than that an interesting read

That was a very very nice read. I'm drowning in fan theories every time i end up in this subreddit, but this was(a link to) one of the better and more wellwritten. And it has some new points i haven't read before.

http://www.reddit.com/r/asoiaf/comments/1wo6ca/spoilers_all_jaime_azor_ahai_the_god_of_war_norse/

About an hour too late there, buddy.

Blogpost: Jaime as Azor Ahai (Spoilers All)