This is a question that I would’ve like to know the answer of for the whole of my life, what if the big bang never

Question: This is a question that I would've like to know the answer of for the whole of my life, what if the big bang never happened? I would like you to answer it in a more simplified way.
- Keywords:
  Big Bang
Asked by anon-193409 to Morwenna, Jamal, iainstaniland, Heidi, Emma, Carl on 13 Nov 2018. This question was also asked by anon-193451.
- Emma Crawford answered on 13 Nov 2018:
  
  It’s a bit hard for me to simplify this as I don’t know the answer myself as I am not really into physics. I had a quick look online about this and there seems to be quite a debate about different theories. This would take me a while to read through and digest in order for me to relay back to you in a simple way, and I must apologies I don’t have enough time today as I have my own work to do!
- Heidi Gardner answered on 13 Nov 2018:
  
  I believe that the big bang is what caused the universe to begin. It’s the most credible theory that we have, so in my opinion, if it didn’t happen, then there wouldn’t be a universe at all.. it’s difficult to think about though! What do you think?

Question: This is a question that I would've like to know the answer of for the whole of my life, what if the big bang never happened? I would like you to answer it in a more simplified way.