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Also everyone is assuming humans not going extinct also means civilisation lives on, and I think that's pretty optimistic.
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The long-term future of our species sans technological civilisation is the same as any other species sans technological civilisation, so the survival of civilisation and of humanity is more or less the same thing.
Unless of course, we can hope for a new technological civilisation to pop up later on. I'm sure it could, provided there is a convenient, highly efficient and easily-accessible energy source still available to them. The sort that should only ever be used to boot-strap a civilisation up to proper energy sources and under no circumstances whatsoever used indefinitely by a lazy population unmoved by far-sighted thinking.