“But Ransom, as time wore on, became aware of another and more spiritual cause for his progressive lightening and exultation of heart. A nightmare, long engendered in the modern mind by the mythology that follows in the wake of science, was falling off him. He had read of 'Space': at the back of his thinking for years had lurked the dismal fancy of the black, cold vacuity, the utter deadness, which was supposed to separate the worlds. He had not known how much it affected him till now-now that the very name 'Space' seemed a blasphemous libel for this empyrean ocean of radiance in which they swam. He could not call it 'dead'; he felt life pouring into him from it every moment. How indeed should it be otherwise, since out of this ocean all the worlds and all their life had come? He had thought it barren: he now saw that it was the womb of worlds, whose blazing and innumerable offspring looked down nightly even upon the earth with so many eyes-and here, with how many more! No: Space was the wrong name.”―
Let's say that in ten million years from now a terraformed Mars is home to a race of Martians that were once mankind. And by this same token a highly evolved race of humanity takes umbridge with these Martians & covet Mars as their own?! Such is a very small part of the plot of the Science Fiction classic W. Olaf Stapleton's 'Last & First Men' 1930. W.Olaf Stapleton's 'Last & First Men' isn't in the public domain at all. But it's one of those Appendix Science Fiction classics.
And this brings up the fact that British writer and lay theologian C.S. Lewis not only objected to W. Olaf Stapleton's 'Last & First Men' 1930.
The reference to objecting to Stapledon's philosophy was no accident. In particular, the Christian Lewis objected to Stapledon's idea, as expressed in the present book, that mankind could escape from an outworn planet and establish itself on another one; this Lewis regarded as no less than a Satanic idea – especially, but not only, because it involved genocide of the original inhabitants of the target planet. Professor Weston, the chief villain of Lewis's Space Trilogy, is an outspoken proponent of this idea, and in Out of the Silent Planet, Lewis opposes to it the depiction of the virtuous and stoic Martians/Malacandrians who choose to die with their dying planet, even though they possessed the technology to cross space and colonise Earth."So the last human descendants die out or do they?! In deep time we've got many alternatives to this except for the fixed point of the flying polyps awakening. Adding in the virtuous and stoic Martians/Malacandrians to a time travelling crew in Empire of Time is an option. Mars may or may not be able to be saved but it can add a twist or two.
Could far future corporations actually be the ones developing the 2nd men sealing our own fate?! The 2nd men could be far more important then they seem & it could be them who actually awaken the flying polyps!
The tangling of timelines could kick off a time quake that destroys the barriers between history & dimensions kicking off an apocalypse that leads to a post apocalypse wasteland kicking off the events of Afterday rpg.