I take this more to mean that the logic you're trying to implement has a fixed, non-zero level of complexity (sometimes called "essential" or "inherent" complexity), which forms the complexity floor of your application. On top of that, your implementation adds additional complexity (sometimes called "accidental" or "incidental" complexity), which is not-zero but not fixed.
So, my reading is that in saying "every application has an inherent amount of complexity that cannot be removed or hidden", the law is referring to the essential complexity. Meaning, the law says "some of the complexity is unavoidable in every application" vs. "the amount of complexity is fixed in every application". I do think the name of the law is a little weird, as it implies the latter meaning.
The trouble with Tesler's Law is that it's often difficult to distinguish between essential complexity and incidental complexity. When I face a UX problem that seems like an insurmountable barrier, if I step back and consider many perspectives, I often find a way to change the context so that the problem becomes easy to solve. What feels like essential complexity is often surprisingly incidental.
What I'm objecting to is the notion that there is a "fixed, non-zero level of complexity." Often real innovations in organization and structure allow for fundamentally simpler implementations. I'm reminded of physics: there's an inherent complexity in solving a rotational problem. But introduce polar coordinates and you fundamentally change the game, removing a dimension from your analysis for some problems, and making the solution trivial.
I take this more to mean that the logic you're trying to implement has a fixed, non-zero level of complexity (sometimes called "essential" or "inherent" complexity), which forms the complexity floor of your application. On top of that, your implementation adds additional complexity (sometimes called "accidental" or "incidental" complexity), which is not-zero but not fixed.
So, my reading is that in saying "every application has an inherent amount of complexity that cannot be removed or hidden", the law is referring to the essential complexity. Meaning, the law says "some of the complexity is unavoidable in every application" vs. "the amount of complexity is fixed in every application". I do think the name of the law is a little weird, as it implies the latter meaning.