One might think that there is some sexual selection in the GGG: the organisms maybe choose their mates. We can suppose not—we can suppose the aliens completely randomly choose mating partners for the denizens of the GGG, and so while there is some choice of mate during the short earthly segment of existence, this is swamped by what goes on in the GGG segment. Anyway, almost certainly, sexual selection won't be enough to ground mindedness.
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