Also I don't like time in scifi.
In 20 years we saw so many transformations in society and technology. It's accelerating. Smartphones, computers, drones, etc... But in scifi ? You get time jumps of 50 years, 100 years, 1000 years, with barely any change in-universe, if anything just a cosmetic thingy here and there. The setting should be absolutely unrecognizable from one generation to the next.
Same with medieval fantasy, to some extent, although medieval times did evolve at a slower pace. I still don't know how they manage to cram so many generations or years within just one era.
Also I don't like space in scifi.
Space operas just pretend to enlarge the scale of their stories, but they don't, they just shrink the universe to our standard earthly plot scales. It's an old peeve of mine, but I may have not ranted about it in here. You get cop movies that take place in one city, fine. Characters hide in unknown streets and you get their address you get the jump on them. Then you get globe-trotting spy adventures and you realize that countries are essentially street names ("we found trace of him, he flew to Iran, go there and get him"), with people bumping on each others as soon as they step on the right continent. Space operas ? Planets are essentially street names. One biome, one culture, one (space)port, one restaurant. "There, he's on Alderaan, he can't escape us now." Damn, have you ever tried to set up a deliberate rendez-vous in a mall ? "I'm near the entrance !" "Which one ?" "The same as you !" "I can't find you, move to the left side of the doors !".
Time, space, they just change units, they never change scale. Town, countries, planets, timelines, parallel universes... They never change anything to the plots and its requirements. The stories never make use of them, and never get bigger.