yes exactly, the entire goal of my post was to describe how aliens could have entirely different thinking processes and/or scales than humans.

If one alien entity/organism is actually the size of a galaxy, a single solar system would be on the scale of maybe a transistor at 20-30 nm to us.

At that scale it's no longer performance art, but maybe a small part of a engine of some sort.

What I'm saying is thought patterns like "what is it for" "this is inefficient" or "that would be way too big" ... etc is only defined from our point of view.