It’s actually not necessary the concentration power but the available time when being adult… 🤔
Reading 2 books wouldn’t be a huge problem today (if they are good and less then 1000 pages). But unfortunately the two toddlers here say no to me sitting a few hours on the couch and reading some book.
It wasn’t allowed in the US? Wow. Didn’t know that. In EU it’s available since about ten years. Current systems have high definition projectors with >1 million pixels which can display nearly everything on the street before you.