ABOUT THE GAME
Current observations have proven that two halves of the celestial sphere divided by the Milky Way are exactly the same in human vision, including the distances measured by the upper and lower hemispheres. The Hubble velocities of the galaxies away from us, given a similar distance, are also almost the same.From the current state of understanding, the universe is a round pie with a radius of 13.7 billion light years, and the Milky Way is located at the physical center of the observable universe.But why?Are human beings really lucky to be born at the center of the universe?Human beings are not that lucky, unless any observer is at the center of the universe! Which means, the universe may not be flat, but on the surface of a bigger sphere, just as we are on the earth, everyone is standing at the center of the planet.The universe is not a round pie envisaged in the standard model, but a four-dimensional space-time boundary similar to a three-dimensional sphere. This three-dimensional space-time boundary is not flat. Far away, three dimensions will gradually bend, and each dimension is a circle.Dr. Valentino, a researcher from the University of Manchester, recently revealed through the analysis of the observational data of the Planck satellite that the universe may not be as flat as a bed sheet, but a closed three-dimensional sphere similar to a huge balloon. Hubble expansion is the process of expanding the entire balloon; everything is increasing in size.The paper is recently published on Nature:Di Valentino, E., Melchiorri, A. & Silk, J. Nat Astron 4, 196–203 (2020). Our story begins here.Today, our Milky Way, similar to all other galaxies, sits on the sphere of the universe equally and ordinary.However, it is not an ordinary three-dimensional sphere, but a four-dimensional one.The spherical surface of a three-dimensional sphere is two-dimensional, similar to our surface; that of a four-dimensional sphere is three-dimensional, and every dimension is curved in the d...
