As a thought experiment, reverse the question: how could we assume that there aren’t interconnected phenomena after discovering evidence that this phenomena exists?

Even if we never discover what those interconnections are or establish labels for them, interconnection/interdependence is the continuing unfolding of everything, and so I tend to think a more helpful default is to wonder what those interactions are instead of if they exist.

At a minimum, Newton’s 3rd law applies, and however subtle the effects, they are almost certainly there. Where or not they’re particularly interesting to us or “useful” to human inquiry is another question entirely.