This article analyzes Arthur Whitney's extremely compact C code style, specifically examining his 50-line interpreter for the K programming language. Whitney, creator of APL-influenced languages like A, K, and Q used in finance, writes dense, macro-heavy code that fits complex logic on one screen to avoid scrolling. The author goes line-by-line through Whitney's cryptic code, explaining unusual techniques like using char pointers for both integers and strings, extensive macro definitions, and non-standard C extensions. While the style is widely considered incomprehensible, the author explores whether this compact approach might actually help understand complex software faster by exposing all the complexity at once rather than spreading it across hundreds of lines.