Identity in physics can be challenging to find. We’re given a narrow set of labels to choose from, typically theorist or experimentalist, and these can often be time-dependent as we progress in our careers. Throughout my time in the discipline, I’ve worked in experimental labs, theory groups, and more applied settings. Many times I’ve branded myself a theorist, perhaps more out of desire than measure; however, I’ve always wanted a more nuanced way of describing my work, myself, and developmental stage. Short answer: like most things we do, it depends on a clever choice of coordinates. Three different classification systems (two 2D and one 1D) gathered from leading theorists, compiled. Measures features like preference for mathematical or intuitive tools, goals of analyzing existing models or constructing new ones, reliance on rigor, sophistication of computational tools, etc. See full post for more, including XKCD-style visuals (because why not):