The concept of an infinite universe suggests that the universe has no boundaries and is constantly expanding. This means that there is no limit to the size of the universe and it goes on forever.
Parallel universes, also known as multiverses, are theoretical universes that exist alongside our own. They may have different physical laws, dimensions, and even alternate versions of ourselves and our world.
Currently, there is no concrete evidence to support the existence of parallel universes. However, some theories in physics, such as the Many-Worlds Interpretation of quantum mechanics, suggest the possibility of parallel universes.
Scientists use various methods, such as mathematical models and theoretical physics, to study the concept of infinite and parallel universes. They also conduct experiments and observations to gather evidence and test theories.
If parallel universes do exist, it would mean that there are an infinite number of possibilities and outcomes for our world and our existence. It could also have significant implications for our understanding of space, time, and the nature of reality.