Curated by RSF Research Staff
Is the multiverse physics, philosophy, or something else entirely?
An interesting idea emerged in 20th century science, that our universe might not be the only one, and in fact there may be an infinite number of other universes. This came to be known as the multiverse. It provided a cogent explanation for the origenesis of our universe: it is one of many being born all of the time; and why the universe appears to have just the right values of its fundamental constants, what is known as the fine-tuning problem. Note that this a slightly different concept than that found in the many worlds interpretation of quantum mechanics. In which there is an infinite number of parallel universes, and essentially everything that can happen does, just in separate but parallel realities.