The cosmological background radiation, which is an image of the universe shortly after the big bang and before inflation, looks similar to the current layout of

The cosmological background radiation, which is an image of the universe shortly after the big bang and before inflation, looks similar to the current layout of matter across the universe. This would seem consistent with a universe being able to be extrapolated from a region of it if there's some underlying holographic relationships. Based on this clip from David Tong. Starts here and goes on a few minutes: https://youtu.be/zNVQfWC_evg?t=2714 https://youtu.be/zNVQfWC_evg?t=2714