Then maybe it ll be nanotech based and just grow in you or implanted at birth and internalised to the point it becomes a de facto human right or at least all but in name.
And then we'll roam the stars, like majestically slow swans. Or rather like ants, with a first ant making the road and all the other following when it found food.
but i digress. But our epic will talk of swans, and have its heroes. And old Earth will be revered, or forgotten. Perhaps both.
or we can stay here. Stay small. stay local. And let the next tool making intelligent species wonder "where is everybody?"