1. Not enough data? Petabytes of data. There is so much data that it is a specialization to handle the data.

2. We can't study open systems? Really. There are a lot of engineers might be wondering why they bothered studying doing it, if it can't be done.

3. Nothing matters that can't be an experiment? So all of Biology and Astronomy, anything with observations but no experiments, all worthless?

In life, some models have a few well defined variables, and some models have millions and are pretty fuzzy. To say one branch of science is a joke, because in your world, things are nice and pretty, is what is wrong.