I think the point he was trying to make is that the rooms are so close to each other even from the other room you are still going to get a signal.
Also... free book.
Oh I know, but the original image is one of those that's trying to talk shit about millenials or whatever for using too much technology? That's what I was referring to. And one free book vs many free books online
Not everything is about millennials. The image is suggesting that people would rather play on the internet than read a book. It doesn't matter that we can read books on the internet. The image depicts people choosing to not read books.
Also... free book.