Every time you look at something, you’re looking back in time. Scientists have even seen a few seconds after the big bang. It’s the same with feeling and sound,(except sound doesn’t travel as fast as light).
This is because light has to travel from everything to your eyes, so if the sun stopped shining right now, we would only know in the next six or seven minutes.
I have a theory about what caused the big bang. I think that some bacteria came out of nowhere and that particular combination of bacteria caused the big bang.