I don't think the first example is a long line. Imagine opening a book, and to have to read sentences that span both pages rather than just one. It's uncomforta

I don't think the first example is a long line. Imagine opening a book, and to have to read sentences that span both pages rather than just one. It's uncomfortable for the eye and it makes it harder to keep track of the motion of finishing one line on the right, and starting the next one on the left. Similar to how websites employ a lot of white space, imagine if instead the text went from the first pixel on the left to the last one on the right, it feels awkward.