Technologies
- Artificial gravity
- Artificial intelligence
- Astronomical engineering
- Self-replicating machines
- Singularity
- Star lifting & Stellar engineering
- Megascale engineering & Planetary engineering
- Technology
- Alien technology being found and used by humans.
- Far advanced technology for the time.
- Virtual reality and simulated reality
- Weapons in science fiction
Read more about this topic: List Of Science Fiction Themes