- Spiritual Antithesis: To Man After Man: An Anthropology of the Future. Both stories deal with the future of human evolution and genetic manipulation. All Tomorrows takes an Anti-Nihilist approach showing humanity, despite its hardships and extinction, still accomplishing amazing things. By contrast, Man After Man is far more cynical, showing humanity becoming simple animals or a Horde of Alien Locusts.
- Uncanny Valley: To say it's prevalent in the various depictions of the human descendants is an understatement—the familiar forms of human anatomy twisted in such... creative ways can get rather unsettling.
YMMV / All Tomorrows