If I understand the big bang theory correctly our whole universe was in a hot dense state. And then suddenly, rapid expansion happened where everything expanded outwards presumably from the singularity. We know for a fact that the universe is expaning and has been expanding since it began. So, theoretically if we go backwards in time things were closer together. The more further back we go, the more closer together things were. We should eventually reach a point where everything was one, or where everything was none (depending on how you look at it). This point should be the center of the universe since everything expanded from it. But after doing a bit of research I have discovered that there is no center to the universe. Please explain to me how this is possible.
Thank you!
In: Physics
ELI5 answer:
Your problem is you seem to be visualizing a sheet of graph paper with a big circle drawn on it; as the circle shrinks smaller and smaller, it will eventually be the size of a tiny dot on the sheet of graph paper, and you can measure the coordinates of that dot on the graph paper and call it the “center.” This is not the correct way to visualize the universe.
The universe is not a circle drawn on the sheet of graph paper—it IS the graph paper. What happens if you shrink the entire sheet of graph paper down to a tiny, single point? You can’t measure its coordinates on the graph paper because all of the coordinates have shrunk down with the universe and every coordinate exists in that tiny shrunken-down speck of graph paper.
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