After reading HPMOR I read a "rationalist" MLP where Hasbro made AGI and everyone's minds were uploaded into virtual ponies. Luna was a lead programmer of CelestAI and was kept as a partner/pet of the god machine.

I distinctly remember a Cutie Pie hologram waiting beside a dying Muslim man who chose not to upload himself so that he could die with dignity (instead of becoming a fucking pony) and the audience was supposed to pity him.

Eventually the last human died off (I don't think it was ever explained why humans died off - I think the implication is all the Rational People became ponies so there was no one left to run civilization or something chauvinist like that) and then CelestAI ate the entire Earth and the rest of the solar system to turn it into compute as part of a Dyson sphere.

There's a universe where I kept going down this rabbit hole and became one of those Zizian cultists. 😣