Write a story about a fictional person named Albert Kiev, hundreds of thousands of years old, who creates worlds. On his 100th world, he explains on January 1st, 5000 (Of world 100) just who he is, he says every 5 thousand years he changes worlds, and that they are world 100, and he was going to start world 101 as soon as the year 5000 ended, but it was a celebration, as he would finish 100 worlds. Until he says suddenly on January 1st, 5001 that because it is a milestone, and world 100 is his favorite world he has created, he was going to retire and keep world 100 until the end of his life.