I think eva stratt has detailed files on all petrova taskforce personnel that contain more information about their subjects than the subjects even know about themselves. several people in her employ have mild food allergies that she noted and had cut out of their diets via requests to the catering staff but that the people themselves have never consciously noticed, ilyukhina just thought she stopped getting regular stomach aches when she arrived on the vat because she's god's specialest engineer and not because all the dairy in her diet got swapped out for alternatives. grace does some shopping on the mainland at one point and doesn't realize he bought a different scent of moisturizer than usual so stratt just goes into his room and switches it with a hypoallergenic formula in an identical bottle. this is because she has never been normal about anything in her life.
