I think it is bad form to link directly to the image file of an xkcd post rather than the post itself, not to mention that you won't have the hover text. https

I think it is bad form to link directly to the image file of an xkcd post rather than the post itself, not to mention that you won't have the hover text. https://www.xkcd.com/2166/ https://www.xkcd.com/2166/