The software user may be the one to trigger the generation of a new world, but they are not the only entity in PISES which may be autonomously exploring new worlds. A procedurally generated species in PISES may very well be conducting explorations of its own, which can sometimes result in paradoxical outcomes.
...direct Ancestral Memory provided many survival advantages for this species (In fact, it was a random neurological mutation they received while still in pre-society). By directly inheriting their parent's memory, the creatures were able to very quickly excel at anything their parents excelled at. If one parent was a brilliant mathematician, then so too would be their offspring; no need to spend decades in school to reach their parent's level of skill (if the offspring even COULD reach the parent's level skill). The skill was inherent, and for this reason, species -f978 was able to advance at an explosive velocity.
If Simulation Theory posits that this universe is an artificial simulation, it therefore supposes that something must have created this simulation. This proposal is synonymous with Deism (and possibly Theism), which propose that an intelligent god created our universe.