Compare and contrast
This:
and this:
This:
In the year of the city 2274, the remnants of human civilization live in a sealed city beneath a cluster of geodesic domes, a utopia run by computer. The citizens live a hedonistic lifestyle, but when they turn 30 must enter the "Carrousel", a public ritual that destroys their bodies, under the pretense they would be "Renewed" or reborn.
and this:
In the year of the city 2274, the colony of human beings on Mars live in a sealed city beneath a cluster of geodesic domes, a utopia run by generative AI. The citizens live a hedonistic lifestyle, but when they turn 30 must enter the "Cloud", a public ritual that destroys their bodies, under the pretense their consciousness would be uploaded to a computer and live forever.