Anything from 45 to 75 characters is widely regarded as a satisfactory length of line for a single-column page set in a serifed text face in a text size. The 66-character line (counting both letters and spaces) is widely regarded as ideal. For multiple column work, a better average is 40 to 50 characters.
— Robert Bringhurst, The Elements of Typographic Style.
Why is Wikipedia so ugly and hard to read? It doesn’t have to be that way. Every time I open it on my desktop it pisses me off. How can you purport to be such a source of knowledge when you make it so shit to read?