The concept of the multiverse refers to the hypothetical existence of multiple universes, each potentially having its own set of physical laws, constants, and dimensions. While the term "multiverse" is often used interchangeably with "universe," they actually represent distinct concepts.
The universe, as commonly understood, refers to the entirety of space, time, matter, and energy that exists within a particular domain. It encompasses everything that we can observe, from galaxies and stars to planets and living organisms.
On the other hand, the multiverse suggests the existence of multiple separate and distinct universes, potentially coexisting alongside our own. These universes might have different fundamental properties, laws of physics, and even different dimensions.
Therefore, the multiverse goes beyond the notion of a single, all-encompassing universal entity. It posits the existence of numerous universes, each with its own unique characteristics and potentially independent of one another.
In summary, while the universe refers to the entirety of space, matter, and time within a specific domain, the multiverse suggests the existence of multiple universes that may have different properties and exist independently of one another.