Loading...

Here is the uncomfortable answer. The Big Bang has no center and it has no edge. How can this make any sense? Let's start with the center. Where did the Big Bang start? Right here and right there and in the next galaxy over. The Big Bang happened everywhere all at once. It had to happen everywhere because everywhere is by definition part of the universe. It was not an explosion that occurred somewhere in space. It was an explosion of space when the expansion of the universe first got started. It was not a place but a time. Now what about the other side of the coin? If the universe is expanding, what is it expanding into? Where is the crust in our expanding loaf of bread? What is the oven where we are sitting in? This is going to get weird. I don't even want to say sometimes alike or something like the universe isn't expanding into anything because that still conjures up the wrong mental image. It's too tempting to imagine a wall or boundary with galaxies and stuff on one side and nothingness on the other. It's demanding to feel that nothingness. But that's wrong. Even the vacuum of space is something. There are still points, locations and existence. There is no outside of the universe because outside implies existence, even an empty one. But the universe is by definition all there is. There is nothing to physical reality except the universe. Walls separate one region from the other. The universe comprises all the regions simultaneously. If there were an edge, you could imagine working hard enough to get outside that edge. But that's not possible. There is no outside. There is no space. There is no universe. That's it. Lots of questions on that one. Make you scratch your head a little bit. Think about this. There are lots of questions on that one. Make you scratch your head a little bit. Think about this.