A publication about science fiction, fantasy, and horror organized around specific speculative ideas: five carefully verified books per subject, with real sources for every claim.https://5sffbooksabout.com/en-UShttps://5sffbooksabout.com/articles/time-loops-one-person-remembers/https://5sffbooksabout.com/articles/time-loops-one-person-remembers/Five verified, deeply researched books about time loops in which only one person remembers, with real sources for every claim.Fri, 14 Aug 2026 00:00:00 GMTTime loops in which only one person remembersIlana Marshhttps://5sffbooksabout.com/articles/first-contact-as-colonial-encounter/https://5sffbooksabout.com/articles/first-contact-as-colonial-encounter/Five verified, deeply researched books about first contact as colonial encounter, with real sources for every claim.Sun, 02 Aug 2026 00:00:00 GMTFirst contact as colonial encounterIlana Marshhttps://5sffbooksabout.com/articles/mind-uploading-as-death/https://5sffbooksabout.com/articles/mind-uploading-as-death/Five verified, deeply researched books about mind uploading as death, with real sources for every claim.Thu, 09 Jul 2026 00:00:00 GMTMind uploading as deathIlana Marshhttps://5sffbooksabout.com/articles/sentient-trees/https://5sffbooksabout.com/articles/sentient-trees/Five verified, deeply researched books about sentient trees, with real sources for every claim.Sat, 27 Jun 2026 00:00:00 GMTSentient treesIlana Marshhttps://5sffbooksabout.com/articles/post-scarcity-societies/https://5sffbooksabout.com/articles/post-scarcity-societies/Five verified, deeply researched books about post-scarcity societies, with real sources for every claim.Mon, 15 Jun 2026 00:00:00 GMTPost-scarcity societiesIlana Marshhttps://5sffbooksabout.com/articles/generation-ships/https://5sffbooksabout.com/articles/generation-ships/Five verified, deeply researched books about generation ships, with real sources for every claim.Fri, 29 May 2026 00:00:00 GMTGeneration shipsIlana Marshhttps://5sffbooksabout.com/articles/uplifted-animals/https://5sffbooksabout.com/articles/uplifted-animals/Five verified, deeply researched books about uplifted animals, with real sources for every claim.Sat, 16 May 2026 00:00:00 GMTUplifted animalsIlana Marshhttps://5sffbooksabout.com/articles/terraforming/https://5sffbooksabout.com/articles/terraforming/Five verified, deeply researched books about terraforming, with real sources for every claim.Tue, 12 May 2026 00:00:00 GMTTerraformingIlana Marshhttps://5sffbooksabout.com/articles/dyson-spheres-and-swarms/https://5sffbooksabout.com/articles/dyson-spheres-and-swarms/Five verified, deeply researched books about dyson spheres and dyson swarms, with real sources for every claim.Tue, 28 Apr 2026 00:00:00 GMTDyson spheres and Dyson swarmsIlana Marshhttps://5sffbooksabout.com/articles/space-elevators/https://5sffbooksabout.com/articles/space-elevators/Five verified, deeply researched books about space elevators, with real sources for every claim.Tue, 14 Apr 2026 00:00:00 GMTSpace elevatorsIlana Marsh