The Malleable Glyph (Challenge)

Malleable Glyph is a new visualization problem and a public challenge. It originated from UX research (namely from research on card sorting UX), but its applications can be diverse (UI, gaming, information presentation, maps, and others). Its essence is: carrying as much information in a defined planar and static area as possible. The information should allow human observers to evaluate a pair of glyphs into three possible sortings: the first is "greater", or the second is "greater", or both are equal. The glyphs should adhere to the Illiteracy Rule, in other words, the observer should ask themselves the question "how much?" rather than "how many?". This article motivates the technique, explains its details, and presents the public challenge, including the evaluation protocol. The article aims to call for ideas from other visualization and graphics researchers and practitioners and to invite everyone to participate in the challenge and, by doing so, move scientific knowledge forward.