In Hilbert infinity hotel, all the rooms were occupied. Then how did the occupant were able to shift to their adjoining room?? Here I understand, by full mean, ALL the infinite room has a corresponding occupant. I also understand some infinity number are greater because it can be proove when they are placed side-to-side. Here, if they are able to shift, then it is possible when one room is vacant, say the last one. But again in infinity, there is no end. Thanks.