>>13419377Assuming the universe isn't a hypersphere, this is like asking how many digits of pi before it repeats. Well it's never gonna repeat in the same way as a rational number, but there will come a point at which you've seen every single digit, then later, a point at which you've seen every combination of 2 digits, later still 3, you get the picture. Do you consider the fact that everything is made of the same fundamental particles to be repetition? You'd probably say no. Well suppose there were a planet identical to Earth. If you went far enough outward, you could find a difference in its *surroundings* compared to our surroundings, but as a much more rare occurrence, you might find an entire galaxy that is identical. The rarity of repeating sections depends on how complex they are. This is actually what Penrose tilings are like as well. They have sections that repeat, but there is no translational symmetry for the whole thing. If the universe is random, then you will never get full repetition, just like pi never fully repeats in the way a rational number would.
