It's just like that. My brain does it so often it's very difficult for me to read books

You're looking at each word and recognizing that sentences are there, and you're following through them. Your brain has decided that's sufficient work to absorb the material. So it just discards the information instead of doing the work to process it and convinces itself that it's reading.

Then you realize you did part of the job but didn't finish it. So you need to double the looking at words, paragraphs, or pages work while working actively to make the brain process it and form comprehension.

In some cases it can be demotivating. Otherwise just silly.

I can read the words but I'm not following the story instead but I'm thinking of something else.

I'm pretty sure it's an ADHD thing.

Yeah. But does only happen with tech stuff & news recently. I need a vacation.