Paul McNeil and Hamish Muir’s MuirMcNeil is known for brilliant, eye-catching systemic and algorithmic experiments in design. (Like, say, the time they made 8,000 unique covers for Eye magazine.) Now they’re back with a new typeface: Interlock, featuring four styles in six weights. Like most of their projects, in addition to just looking plain cool, a significant amount of theory and thought underpins the work. As MuirMcNeil explains: “In Interlock, the relationship between i