It seems likely that, ultimately, the silos are artificially created ones.
Universities are blown up.
Categorization of human endeavor is wiped.
Ultimately, we’re people. These systems of convenience to help humans ascertain whatever it is that we’re trying to ascertain are CONVENIENT… but sometimes they can get in the way of progress as much as the help progress.
To use the terminology likely improperly, we all seem to enter discussions “as if” these University distinctions are “a priori” in nature.
Yet, they each have a history.
There was once a time when they were not.
What is progress?
A sense of some kind of “more than before”.