I don’t know – I think that the human cause depends on shared historical experiences, shared physiologies, and shared ecosystems. Whatever makes its way to another solar system will probably develop a civilization vastly different from our own and, given the harsh constraints of space travel & colonization, it could very well be one that we’d find monstrous. Most of what we value as humans depends on our ability to waste a bunch of surplus resources – culture, play, community, creative experimentation. Is there going to be room in the energy budget on the generation ship for those things or are they going to be excised from the space colonists to maintain maximum efficiency?
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