It's really simple. Every megaparsec, the universe expands 3.26 million light years, so I figured out how to find the measurements of the beginning of time. It's really a very interesting topic :) Play with the light years and stuff. You can see how big the universe was a fraction of a second after the big bang. You can also see up to 47 seconds into the future.
Music is by Claude Debussy, my fav composer! If you’re curious why I made it "say" the light years, it’s because it’s more exact.