As Theta uses the datachip to observe the situation, realization can be heard through her voice.  "So that's how he does it," she says, before explaining to the others more succinctly.  "There's been some questions about how he's been able to break the artificial intelligence barrier.  If what I'm seeing is right, I'm thinking he might be using these aliens to think on behalf of his machines, with the rituals enslaving them.  That way, it's not the machine power, it's just these creatures that tell the machines what to do."