all this speculation on what the Catalyst is.. it's obviuos - he's a hallucination - no real body, no real image, no physical features other than an outline of a child.  why? 'cause he's a hallucination from indoctrination. case closed. 

alpha11gxp

Posted Mar 22, 2012 2:28 pm GMT

The thing that ruined the ending for me is there was no real choice. No matter what you chose its all the same. If all humans died but it saved the rest of the galaxy that would have been better then that crap ending. What they could have done is have the same three choices but. Choice #1 Destroy the reapers. It blows up the Citadel, Earth and the entire system kill all in it and everyone else stays alive (reapers gone forever). Choice #2 Synthesis. Don't change a thing.
Choice #3 Control. You control them. Mass relays don't get destroyed.
You can even add to #1 destroy all synthetics. Boom a million times better. I thought that up in like five seconds. Bioware you should feel ashamed!!!!

I think that comment kinda sums it up.  All "choices" were really hallucinations, too, maybe? 'cause there is no choice?