No one here seems to have mentione S Hawking’s pithy remark “Asking what happened before the big bang is like asking what is north of the north pole.”
Regards
FML
Whatever happened to those theories Brian Greene used to discuss where the big bang was a collision between two branes drfting “apart” and banging into each other over trillion year intervals? It was in The Fabric of the Cosmos around page 410. Anything to that or was it just wild speculation?
From what I’ve read, it was speculation. Wild or not, I don’t know, but it isn’t supported anymore.