Despite it being a non-scientific theory with no evidence to back it up, many people embrace it. To its supporters, these parallel Universes could even be interconnected through special cosmic structures, such as black holes and wormholes. Strange? It may well be. Impossible? Apparently not. From a quantum perspective, multiple Universes, independent and isolated, always arise in response to each viable option.
Thus, you and I would be in this (known) and in other (unknown) Universes, at the same time, spread out across the vast cosmic expanse. In the majority of these, our lives would be totally different, as many of the quantum decisions taken would have led us to other realities. While in some of these soap bubbles our existence would be a reflection of our life on Earth, like in a mirror.
Fiction or reality - the concept of a Multiverse is nonetheless interesting (and scary!). However, to live in parallel Universes touches on other complex and controversial ideas, such as eternity and the diversity of one's own soul, which would be surrounded by various (and countless!) reflections of ourselves.
Original article in Portuguese can be read in the Diário Popular Pelotas newspaper by clicking the link.