The difference between "being right" and "being persuasive"

If you're into science literacy — or, even, if you're just into arguing with other people on the Internet about science — you need to read this post by neuroscientist Chris Holdgraf. It's a great explanation of why "the data speaks for itself" isn't a particularly good retort (and can, in fact, be misleading) and why sacrificing a little accuracy for the sake of understanding is a better idea than it sounds.