There are people living on Earth who are 1000 years old, they just hide it by changing their name and place of residence. A machine operates in our body, which after some time begins to deliberately distort the cellular structure - old age and death. This was necessary for the survival and struggle of man as a species, but now it is no longer necessary. This internal machine can malfunction - then long-livers - Agaspheres - appear. They are the forerunners of future immortal people.