In this podcast I told many hypothesis and predictions about what was before the bigbang ? From simplest models to Hawking's no starting point model and the 2020 nobel lauret Roger penrose's iteration model . And many others like the Brane theory about cosmology and string theory . Hope you like this podcast . Forget not to follow me . #Bigbang #what was before bigbang ? #Stephen Hawking #Roger Penrose #String theory . Instagram :https://www.instagram.com/think_like_a_physicist/