When I was studying philosophy in Heidelberg, I read about the logic of possible worlds. Everything possible is also real, just not accessible to me at the moment. This was an answer to a basic problem of propositional logic, namely that an 'if ..., then' sentence - with a false premise and a true conclusion - is true overall.
In the Western Enlightenment, Leibniz assumed that we live in the best of all possible worlds. This is extremely abbreviated, a proof of God. Everything is reflected in everything. He called this monads.
However, the possibility of all existence is already contained in the origin of existence, how could it be otherwise? The idea of progress, that in the beginning there was nothing and that somewhere there is always more and better, is not rationally comprehensible, even though it seems to be the basic assumption of a large number of scientific theories.
We do not live in the best of all possible worlds, nor do we live in a world of progress. We are part of a being that always already contains all possible worlds.
