Now, the Infinite hashtag is there just to lure any unwary Floodians who may have an interest and therefore slightly know about the topic. To break it down, ghost particles are the only things of which we're currently aware that can travel between realities, right? Would there be any way to stop them doing that? Would quantum entanglement do that? If so, can someone explain it for me? And if not, can anyone think of a way ghost particles could be 'held' in one reality?