What if the Big Bang wasn't the beginning?

A new study was published on May 29, 2025 with the nice name of “gravitational rebound of the quantum exclusion principle”, the research is led by Spanish Enrique Gaztañaga, professor at the Institute of Cosmology and Gravitation at the University of Portsmouth. Enrique Gaztañaga is in the first division of world cosmology and is the one who has led the team of researchers of this study, and raises the possibility that the Big Bang or in other words, other quite amazing things happened before. The Big Bang is often described as the expansive birth of the universe, a moment of singularity, in which space, time and matter were compressed almost to infinity. But once it expanded, space, time and matter emerged, but what these researchers ask is, what if that was not the beginning at all? And if our universe emerged from something else, something bigger and also something more familiar and radical, the calculations of this team of researchers suggest that the Big Bang was not the beginning of everything, but the result of a gravitational contraction or collapse that formed a very massive black hole, followed by a rebound inside it.

The current standard cosmological model based on the Big Bang and cosmic breach, that is, the idea that the early universe increased rapidly in size, works quite well, but leaves and answers some of the fundamental questions, however, this new model presented by the researchers, who are in the news now, addresses those questions with a different perspective, looking inward from outward. Instead of starting from an expanding universe and trying to trace its origin, researchers asked what happens when a colossal accumulation of matter collapses due to gravity, this is a known process, massive stars collapse, their core becomes a black hole and we have already detected a few. They are among the objects that we increasingly know better and understand better about physics, although we still don't know what happens inside. At least we know what happens in its environment, more or less, but what happens inside a black hole goes beyond the event horizon, from which nothing can escape, remains a mystery.

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