If you've used Tinder often enough, you've probably wondered whether there was a science behind who your matches are. Well, it's now certain that there is -- although whether or not you like it is another matter. Tinder tells Fast Company that it gives everyone a hidden "desirability" score based on an algorithm determined by "a lot of factors." The company isn't clear about what those are (trade secrets!), but the suggestion is that it's partly a reflection of how closely you match traits that convince people to swipe right. If you have a fully fleshed-out profile with interesting photos, for example, you may be more alluring than someone who posted the bare minimum and a humdrum profile shot.