How did it all begin?

What came before the big bang? How did it all begin?

These are questions based on the understanding of time in our universe. But we can't assume time exists outside our universe. Even within our universe time is changed by gravity.

If the universe is a bubble where time moves forward, outside our bubble time might be a constant state with no past or future. Time might be like a movie where you can watch the biography of someone's life in 2 hours but you can also skip chapters and rewind.

In summary, there might not have been a beginning.