I know what you're thinking about the duplication stuff - its actually not as mystical as it sounds. The portable refiner thing works because of how the game handles item storage and memory, not because of any fancy mathematical theories. While people sometimes joke about the banach-tarski paradox, which is this wild math concept about splitting objects into pieces and getting two identical copies, that's not really what's happening here.

The actual glitch comes down to some quirks in how the inventory system tracks items when you're messing with refiners and save states. Pretty interesting, but it's really just taking advantage of some code oversights not pulling off impossible math tricks. If you're planning to use it just remember that technically it wasn't intended to work this way, and developers usually patch these things out eventually when they can.

The whole banach-tarski connection is more of a running joke in the community, since both involve getting two things from one. But while the math paradox needs infinite sets and impossible shapes, the game glitch is just about finding gaps in how the code handles inventory management.