I came across this comment:
You won't understand this answer, but here we go: Time and space are intrinsically connected. You cannot have one without the other. Before the Big Bang there was no space and hence there was no time. Asking about what was before it makes nonsense. This is what we have confirmed with the the effects of the gravitational wave detected this year, which were explained by Einstein 100 years ago.
Since I'm not a physicist, I don't know, what physics says on this topic, but the following question strikes me as a philosophical question, not a scientific one:
Can there be change, if there is no time?
The author of the comment seems to imply, that before the big bang, there was no time. But, in order for the big bang to happen, something must have changed. So, is it possible, that there is change, without time?
Funnily, I can imagine a world, where time exists, but no changes happen.
In my google research, I found a lot about philosophy of time, but nothing regarding this topic. Any suggestions?