The conversation between human and AI assistant.
What are some alternate theories to the singularity existing at t=0 just before the Big Bang? What else could have existed just before the Big Bang?
Can you tell me about some alternate theories to the singularity existing at t=0 just before the Big Bang? What else could have existed just before the Big Bang?
There are some theories that propose that the universe has gone through multiple cycles of expansion and contraction, and that the Big Bang was simply the most recent expansion. Another theory suggests that the universe originated from a white hole, which is a hypothetical object that is the inverse of a black hole.