Abstract
In this essay I take symmetries as the conceptual basis that governs the structure of the laws the objects. It also defines under which condition a system can be viewed as separated from its environment. Only if a system can be separated from its environment the laws and concepts of a system are well defined. In my opinion this might lead to a new solution to the measurement problem in quantum mechanics. The separability condition of protects Wigner's friend measurement because Wigner's intervention destroys the symmetry and unitarity of Wigner's friend measurement and hence his measurement is not well defined any more. Objects, laws and environment build a unity which I call semantically closed theory. Taking into account the environment and the conditions under which quantities can be defined makes it thinkable that under different environmental conditions different symmetries and laws might emerge and be realized. I apply these ideas first to social sciences and philosophy of science. Then I apply this view to the arrow of time, where I show that the epistemic arrow of time might be explained by the succession of semantically closed theories, where the later contains the earlier. Finally the possibility of having physically systems with changing laws and concepts might correspond to changes of the axioms defining a physical system. This gives us a new perspective on how to think about consciousness in the context of Gödel's incompleteness theorem.
Luca Valeri