The idea of infinite universes, also known as the multiverse, is a concept that has been proposed by some scientists and is based on certain interpretations of quantum mechanics and cosmological theories. However, it's important to note that the concept of the multiverse is still a highly speculative and theoretical idea, and it has not been proven or confirmed by empirical evidence.
Within the framework of the multiverse hypothesis, it is theoretically possible that other universes exist where conditions are suitable for the emergence of life and the development of advanced civilizations. In some of these universes, it is conceivable that technologically advanced alien civilizations might have discovered a way to travel between universes.
However, it is crucial to emphasize that the existence and capabilities of such alien civilizations, as well as their ability to travel between universes, are purely hypothetical at this point. We have no concrete evidence to support the existence of extraterrestrial life, let alone technologically advanced civilizations capable of interuniversal travel.
The multiverse hypothesis is still an active area of scientific research and speculation, and many different theories and interpretations exist within this field. While it's fascinating to consider the possibilities presented by the concept of infinite universes, it's important to distinguish between theoretical ideas and confirmed scientific knowledge.