This article is very bitter and inflammatory. In my experience, people only use two spaces after a period because thats what they were taught and are too stubborn to change.
The main typographic case against two spaces after a period is that it breaks up the flow of text and creates rivers inside the text block. Counter space is the most important aspect of a typeface, and by adding two spaces after a period you are breaking the rhythm of the text.
The main typographic case against two spaces after a period is that it breaks up the flow of text and creates rivers inside the text block. Counter space is the most important aspect of a typeface, and by adding two spaces after a period you are breaking the rhythm of the text.