Originally Posted by ares834
I'm saying, from what I've seen, Loki seem to be "the only one". He is the one who truly knows about the darkness. I'm not saying he is the villain they are talking about that is known to only one.
And I'll repeat what I posted just before Thread Manager dropped tha bass:
That would make sense if they were talking about Loki, and him being the only one with experience with this person/entity could very well refer to: Thanos and/or The Other. As far as we know, Loki is the only one who's had any experience with the Mad Titan.