Well, if we could travel back, wouldn't we see all of matter condensing into one point and, with it, the collapsing of space itself? Upon reaching the final point, I believe we would actually see that there was nothing at all. No matter, no space, nothing. Then if we could fast-forward, the matter would appear, literally out of nowhere followed up instantly by the biggest explosion our universe has ever had. And then we would see the first seconds of the universe.
Where have I got it wrong?
No, we would never reach that point, even without a singularity.we could never observe the beginning of the universe directly, as we are a part of it.
On a side note, new ideas about what "time" is are emerging And that's an appropriate word, as they describe time as an emergent property of quantum entanglement. An observer outside our universe would not perceive any passing of time at all, when observing our universe. It would not even appear to exist at all!
If we were with the creator, we could see all of the matter retract and consolidate into nothing.
Your point about an observer not perceiving the passing of time might be true for us, but the creator would certainly know what is happening.
On another note, we can create programs to simulate the big bang and to even create worlds and to fill it with life. What we CAN'T do is give the creatures in our world sentience. But our creator can. The whole concept of a creator creating the universe and life seems fantastic but, when you look at it using the computer programming analogy, it's not that difficult to imagine at all.