"Maybe There is no 'There' there"
Scientists cant tell us much about what happened during and before the Big Bang. Time itself may not have existed. All of our logicis based on time and chains of events or states.   'What happened before the Big Bang to start it, what made up the pre Big Bang Universe are questions with no firm answers. This is because we are theoratially exploring the extreme limits of our universe, our knowledge, our logic and our scientific theories.