Please don’t use this study to justify your horrible habit of using two spaces after periods
Is it better to have one or two spaces after a period? The first study investigating this hotly contested issue is here, and it supposedly gives the win to the two-spacers. But a closer look at the research suggests that the only reasonable interpretation is that double spacing after a period remains bad. It’s ugly, it doesn’t help when it comes to what matters most (reading comprehension), and the experiment that supports its benefits uses an outdated font style.