>kaa Something can't exist without the world. The fact that there are thinkable things called concepts means that they belong to the world. What so called the physical world is just a subcategory of it.
The world is real. A state machine is a concept. Categories are limited to what is real by our sanity. The world is our biggest category, because we are products of it, and it contains us, who model the world with concepts. Semantics are developed from a history of association between syntax and reality. Our memories are part of our states.