I ask because it’s considered common knowledge that you can’t but I regularly have dreams where I continue books I’m reading irl (they usually devolve into naritive nonsense over time and then sometimes to blank pages, but the actual text is definitely deciferable), text messages, computer screens, and road signs, in both lucid and regular dreams. Am I the odd man out or is it actually just something people say?
If you want to try to learn how to know you’re dreaming while in a dream, you can check out !luciddreaming@lemmy.world. I’d mainly suggest you check out r/luciddreaming for learning to lucid dream (has loads of info for learning + has been around for over a decade and has a bigger userbase). Beware of YouTube videos though, as they spread misinformation. I’ve lucid dreamt a handful of times and it’s pretty fun!