Nothing is Infinite or Unique
Picture this.
You're sitting in front of a computer and one pixel in the top left screen is lit; all the others are blank. The program moves the pixel across the screen, point by point, column by column, row by row. When it gets to the bottom two pixels appear at the top of the screen. The leftmost one stays where it is while the one on the right works its way down the screen. When it gets to the bottom, the one at the top moves over a spot and the one at the bottom jumps back up beside it to repeat its journey down the screen. By adding one pixel at a time and following this pattern, pretty soon everything that can be pictured will be pictured. That's an important point - everything that ever has or will exist in the visible universe will have been pictured.
Now, change the screen to a 6 foot cube and trade the pixels for elements. Sooner or later everything that can exist will exist in that cube; everything you can ever do will be some form of combination. Given enough time, repeats will have to occur in the future and must have occurred in the past (if eternity exists in either direction). Given enough space and matter they'll be repeating right now out there too.
Could this explain deja vu?
Could this explain deja vu?