Forget left and right wing, forget coriander lovers v haters. The real divide in our society is between the one spacers and the two spacers. And Slate’s restarted the war with this article: Space Invaders: Why you should never, ever use two spaces after a period
Two-spacers are everywhere, their ugly error crossing every social boundary of class, education, and taste. You’d expect, for instance, that anyone savvy enough to read Slate would know the proper rules of typing, but you’d be wrong; every third e-mail I get from readers includes the two-space error.
I’m a one spacer, and I’ll tell you why: Go to your bookshelf, open up any book, and look after any full stop. You’ll find one space. That’s how the pros do it.
Back in the days of typewriters, all the characters were monospaced, so an ‘m’ took up the same space as an ‘i’. A monospaced font will look like crap if there’s only one space after a full stop, so people were taught to use two. Nowadays, we have computers with well-designed typefaces, so you only need one space, as nature intended.
I can only see two reasons to use two spaces. Either you’re on a clanky old IBM Selectric, or you were taught to type by sadistic nuns who beat you if you forgot the extra space. The former can be cured with a computer, the latter with therapy.