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?
No. Everything just looks like complete nonsense.
A good way to tell if you are in a dream is to look at your hands. For some reason, your brain while dreaming is a lot like a diffusion model in that it’s hard for it to comprehend what a hand looks like.