Arguing with a Slate article is probably the wrong place to start for this discussion. The Wikipedia entry on sentence spacing is probably a tiny bit better. A

Arguing with a Slate article is probably the wrong place to start for this discussion. The Wikipedia entry on sentence spacing is probably a tiny bit better. As much as I'd love to see a properly executed experiment where reading speed, enjoyment and comprehension was evaluated between groups of people reading the same material using single or double spacing after a period, I'm guessing it ultimately it comes down to preference.