this post was submitted on 12 Jul 2026
56 points (95.2% liked)

Science Fiction

19085 readers
37 users here now

Welcome to /c/ScienceFiction

December book club canceled. Short stories instead!

We are a community for discussing all things Science Fiction. We want this to be a place for members to discuss and share everything they love about Science Fiction, whether that be books, movies, TV shows and more. Please feel free to take part and help our community grow.

  1. Be civil: disagreements happen, but that doesn’t provide the right to personally insult others.
  2. Posts or comments that are homophobic, transphobic, racist, sexist, ableist, or advocating violence will be removed.
  3. Spam, self promotion, trolling, and bots are not allowed
  4. Put (Spoilers) in the title of your post if you anticipate spoilers.
  5. Please use spoiler tags whenever commenting a spoiler in a non-spoiler thread.

Lemmy World Rules

founded 3 years ago
MODERATORS
Tenthrow@lemmy.world
56
Favorite scifi concept? (lemmy.ml)
submitted 3 days ago by ashenone@lemmy.ml to c/sciencefiction@lemmy.world
121 comments fedilink hide all child comments
 

I'd love to hear about your favorite concept or idea you've read about or seen in scifi media.

My personal favorite is the Conjoiner Drive out of the Revelation Space series. These ship drives are dual drives on either side of a lighthugger and have a living being inside the drives to act as a supercomputer, which holds a wormhole open inside the drives. The wormhole links far in the past to the big-bang and uses the energy from the big-bang for propulsion.

In most scifi I've come across wormholes are used for FTL travel, and I thought this was such a unique and creative use of a wormhole it has stuck with me for years after reading about it.

So what are your favorite devices or ideas that have come out of scifi media?

you are viewing a single comment's thread
view the rest of the comments
[–] TheDarkestShark@lemmy.world 1 points 1 day ago

I started reading a new series called The Captives War, same author as The Expanse. The book starts on a non-earth planet where humans have a seemingly similar level of science and tech as today. They discuss knowing that this planet is not their home world because they live along side another evolutionary tree but they do not know how they got there.

Its not really the main focus of the story so it hasn't really been explained yet, I only read the first book so far and the third of the trilogy is not yet released. Some fan theories think its a connection to the end of The Expanse book series, where spoiler spoiler the network of portals connecting 1000s of world's is destroyed stranding millions of people on 100s of worlds across the universe.

I just really like the concept of humans industrializing on an alien world and how they got there was simply lost to time. The fan theory is also partially why I like it but I'm sure it will have a different explanation.