Yeah, there's a great grimiore about the Academy in Venus studying a caged Vex specimen, and it's showing them an image of what's playing through it. And it's the researchers, but very slightly in the future. They go to talk with people about it, after having been showed that they were gong to talk to people about it, and it's a massively confusing thing about everything they know just being another section of the Vex mind catalogued away in a simulation, and the Vex could do anything they want with that simulation, and how many other simulations are there, of the exact same people in different timelines that the Vex can exploit. I'm really not sure how we're able to kill these things.