That's why I use horizontal screens as well. If you're looking at a screen or paper all day, you want narrow text to avoid a lot of unnecessary eye movement, a

That's why I use horizontal screens as well. If you're looking at a screen or paper all day, you want narrow text to avoid a lot of unnecessary eye movement, and relatively short windows so you avoid unnecessary head movement. Readability is still a good reason for keeping functions narrower than 80 columns and shorter than 24 lines.