Anything related to the fantasy genre
cross-posted from: https://lemm.ee/post/4711771
At least some of the signs were desgined by Anders Sandberg:
I found the image on Bruce Sterling's Tumblr.
The source is from u/FuckMyHeart's (reddit user) comment, which has a bit more info:
From the same comment and user:
Tesla coils are real (just kinda impractical if you're planning to build a Red Alert style defense system)
Wait a minute... Live ammunition isn't fringe science, it's how we've been putting DNA into cells in many cases.