[quote][b]Posted by:[/b] QKT100 MC's cortana made her choice way early on, when he was still a kid and all that coin and luck nonsense. -see halo 3 opening- so I get the feeling it's not the same cortana, because cortana was on the pillar of autumn, and I think that she was there for a while...? All just supposing though.[/quote] wrong sir. the words used at the halo 3 opening are referencing the conversation that cortana had with dr halsey about choosing MC when she did. So this conversation in the reach vidoc is either the same conversation as another poster referenced (ie: she chose the chief over noble 6) or, if they are strict with canon (where she only had her choice of the spartan II's) then this is an additional story and cortana has to make a choice again as she assists/advises Hasley on a decision. They just like to do this more conversationally. And the "great minds do think alike" is just their way of saying "I agree with your assesment" without sounding too military-ish