Slop.

I can definitely understand that so much of mental capabilities are a muscle you need to train; I used to love reading when I was growing up; the only other people I knew who loved reading as much as myself was one of my siblings (we didn't share the same interests though), everyone I went to school with had zero interest in novels unfortunately. I recall spending hours and hours just engrossed in novels, a practice I can't imagine doing now without forcing myself to continue. I lose interest in the stuff I'm doing (watching stuff, gaming, etc) very quickly, but I do recall when I used to read as a child I could just sit on my bed for hours on end just reading. I used to be able to finish books I liked in 1-2 days, but now I can barely remain interested for more than a handful of minutes at a time. I can't help but feel there's a muscle I let deteriorate that is now no longer up to the task.

Basically once content like video games, TV shows and anime became more accessible I ended up leaving reading behind; ironically aside from wanting to be a game developer ever since I was a kid, I also always had my heart set on being a writer (I still have a lot of fleshed out stories in my head I never wrote down), but I also left that behind ages ago. I just don't have the focus or patience to do what it takes to be a good author (it takes skill to tell a story and to tell it well, and it takes practice to do that, I'm too lazy to practice).