Several individuals created in the limited space proliferate by forming bands. The bands that spread outwards protect the band inside. The bands have separate time that crosses time that spread outwards. The bigger the diameters of the bands become, the faster they become. The bands that keep bigger encounter the wall of space and are sucked inwards back. From then, the time that flied becomes slower. As the bands return inwards step by step, they delude themselves as déjà vu. By the time they feel the time that gets slower, they recognize that they have reached a half of the space. 
The individuals with bands are not clones but identical individuals, and luckily, the number of individuals that return gradually decreases, but the thickness of each individual gets bigger as time goes by. Even though they disappear in a moment…