The concept of a finite universe and the existence of infinite possibilities in quantum physics are not contradictory. They pertain to different aspects of our understanding of the universe.
When we talk about a finite universe, we typically refer to the observable universe, which is the portion of the universe that we can potentially observe. This observable universe is indeed finite in size because there is a limit to how far light or any other signal has been able to travel since the Big Bang. Due to the finite speed of light and the age of the universe, there is a boundary beyond which we cannot currently see or interact with.
On the other hand, the idea of infinite possibilities in quantum physics refers to the probabilistic nature of quantum phenomena. According to quantum mechanics, the behavior and properties of particles and systems are described by wave functions that can be in superposition states, as we discussed earlier. When a measurement is made, the wave function collapses into one of the possible states, but until that moment, all the possibilities are accounted for in the wave function.
This notion of infinite possibilities arises from the mathematical formalism of quantum mechanics and the probabilistic interpretation of wave functions. It means that, in any given quantum system, there are numerous potential outcomes, and the probabilities associated with these outcomes are described by the wave function.
It's important to note that the infinite possibilities in quantum physics refer to potential outcomes within a given system, while the finite universe pertains to the observable extent of our universe. The existence of infinite possibilities in quantum mechanics does not imply that the universe itself is infinite in size.
In summary, the finiteness of the observable universe and the infinite possibilities in quantum physics are not contradictory. They address different aspects of our understanding: the observable extent of the universe and the probabilistic nature of quantum phenomena, respectively.