Universe is the Godel sentence in the limit of all possible mathematics. Hence it exists and is True. Fix axioms, we get a Godel sentence G1. Add G1 to axioms,

Universe is the Godel sentence in the limit of all possible mathematics. Hence it exists and is True. Fix axioms, we get a Godel sentence G1. Add G1 to axioms, we get G2. So on and so forth. In the limit of this process, we have our Universe.