There is no separate anti-universe, I already covered (F)lying Dick Time father theory.
https://futurism.com/the-byte/connec...erse-scientist
Second time a huge dick was drawn on Mars.
https://gizmodo.com/nasa-perseveranc...ars-1851540382
Yes, the universe is a donut with no center. The furthest distance you can travel is to where you are round-trip.
https://amp.theguardian.com/science/...ure-dimensions