There are two opposing views:
1) No one is an expert really in one field, but the more expert and structured you are in one area and the more you understand how "systems" and knowledge are organized, then it is a matter of time to accumulate"
This has epistemological implicatiinsthst one cannot afford to ignore
2) "One should keep in mind that in non hard science domain, the subject is the human, not the unanimate matetial*,
which, as an important trait of the system, negatively impacts inferential ambitions i.e predictability, systematic organization."
Based on this, reservations to the application of pse to Human subject- based systems are valid.
For, they are characterized by unpredictability, destabilization, randomness, chaotic tendencies, minimal attribution to fundamental laws of behavior, large deviation from previews historic behavior i.e non linearity in time.
Which one you think is the most viable view?
*except active systems i.e bird fkocks, which are a topic of chemical engineerung/physics overlap