User blog comment:Dave55811/"Coordinate" bets, anyone?/@comment-24.217.239.232-20140304022542

Don't you guys think that the Coordinate could possibly be the key? I mean, Reiner says "Of all people, the Coordinate has FALLEN IN the hands of the worst possible person..." Right? If it is a literal object, then anyone could use it.... But if the Ape Titan is who I think it is, the power to control titans could be hereditary- If the Ape Titan is Eren's dad, then Eren would be able to control titans as well.

If that made no sense, here is what I think:

Eren has always been a Titan shifter and could control titans, and he always knew it, but Dr. Jaeger erased Eren's memory, hence the injection in the middle of the woods, and therefore forcing Eren to have to figure everything out all over again. Then, the Ape Titan shows up with the power to command Titans, and everyone's like "Wtf thats a problem". Later, we learn that Eren also has the power to control titans, and if these facts are placed one after another, it would make sense if the Ape Titan is Eren's father, because of the fact that they can both control titans. Also, if you look closely at a picture of Eren's dad and the Ape Titan, there are quite a few distinguishable features that make them look similar, such as the laugh lines. (Ape titan: http://img3.wikia.nocookie.net/__cb20121220010902/shingekinokyojin/images/f/fb/Hairy_Titan_Profile.png and Eren's dad: http://img4.wikia.nocookie.net/__cb20130820194918/shingekinokyojin/images/a/ab/Grisha_character_image.png ) If you look at the pictures (I'm not advertising, I promise!), you can see many features on them both that make them look similar.

Voila!