The Big Bang wasn’t the beginning of our universe – it was actually the end of something completely different
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Sean Carroll is a physicist at Caltech. His research focuses on theoretical physics and astrophysics, especially cosmology, field theory and gravity.
He has published a number of research papers on dark matter and dark energy, variable gravity, Lorentz invariance violation, additional dimensions, topological defects, anisotropy of the microwave background universe, violation of causality, black holes and the problem of the cosmological constant.
It currently focuses on the origins of the universe and time’s arrow, including the role of inflation, the newborn universe, and quantum gravity. In his recent Techinsider video, he explains what existed before the Big Bang and what it really means. So watch and learn:
