Earth is the home world of Gaia. Earth would still be Earth even if it were a lifeless ball of stone, rendered barren by some cataclysmic disaster. Would Gaia still be Gaia, even if she left Earth behind and lived on some other world? Or would the act of leaving this world be an act of reproduction for Gaia? Would the biosphere that resulted from such a migration onto some other world be simply one of Gaia's Children?
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