User blog comment:Raymorn/Bioware Co-Founder Dr. Ray Muzyka Speaks Out/@comment-3097746-20120322033327

I'm a firm believer in the Indoctrination Theory. TBH, there are a lot of hints. If you read the codex on Indoctrination and what not, and compare it to some things, it kinda makes sense. Two big hints are:

1) The "Wake Up" or "Sheapard Lives" scene at the end. He's on Earth. There is no doubt about it. 2) If turning down a love interest, Shepard claims he/she "has a migraine" (Headaches are a big sign of Indoctrination)