[HoneyBadger]

Humans come in two types on the Dyson Sphere. If the Brain is confident enough that they actually existed-if they can be tied to an historical record, if others remember them, if there's enough evidence that the Brain has a "real one", then they are reborn as young adults-around age 25 or so-with the memories of their entire lives intact. They know who they were, what they accomplished, where they came from, etc. If the Brain isn't quite certain, but it's probable that they existed, then they're reborn as children to likely "real ones", matched up based on compatibility with the parent and within the society, with a mild emphasis on how well that child's personality could benefit that particular parent, and the greater society the parent lives in/has come from. This has a psychological effect on many "real" humans, causing many of them to believe they are living in some "Afterlife", or atleast to increase the spirituality of many of them.

For those who have changed themselves into other forms than human, the babies are ensured physically and mentally healthy, but otherwise left alone (random personalities).