You start to notice in common things. Your computer crashes, for example. Or your “check engine” light turns on.
Or, it doesn’t need to be technical: you need new shoes, and you come to find your favorite style isn’t being made anymore.
This at first seems due to either manufacturing, production, marketing and sales tactics and techniques. Meaning that it seems to be done with human intent, for the the sake of capitalism.
But then, you learn that it’s in nature, too.
Heisenberg’s uncertainty principle.
Look it up. One real-life meaning, an interpretation of Schrödinger’s equations, is that instability is inherent.
That IS the beautiful machine we live in.
Everything leads to that.