I don't know if it's an identity we can still take hold of. It's possible that we had our chance -- that the vision vouchsafed us in the drama of the 1960s was the last realistic chance, and that we let it slip through our fingers as we opened them to grasp at more wealth.
At least on a human timescale, we'll never have a planet as intact and full of life as that one we glimpsed from space. Our trajectory is definitely downward. But there was so, so much beauty there, and there's still so much left -- for now.
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