I've avoided sci-fi for years because I'd read a sample of books I thought I'd be interested in, and I couldn't keep up with the world-building from the first x pages. I tried keeping notes, but then it started feeling like a chore. I figured I was just too 'dumb', even though I can manage fantasy world-building just fine.

I'm still giving the genre a try every few months though. Currently reading Iron Widow by Xiran Jay Zhao and it's going well enough. I'm drifting away from YA but I figured YA sci-fi could be a solid stepping stone to adult sci-fi.