Time existed since the big bang so there's no concept of before the big bang.
Some people interpret this as time being in a loop, kinda like if you were to walk around the earth, you will end up at the same place at some point and start again.
We might be living in a multiverse, where this universe is just a tiny part of it, or there could be multiple universes running at the same time.
The truth is that we don't know yet, and maybe we will never know.
Time existed since the big bang so there's no concept of before the big bang.
Some people interpret this as time being in a loop, kinda like if you were to walk around the earth, you will end up at the same place at some point and start again.
We might be living in a multiverse, where this universe is just a tiny part of it, or there could be multiple universes running at the same time.
The truth is that we don't know yet, and maybe we will never know.