Ruby vs. Smalltalk | Lambda the UltimateHmm. No headers (<h1>, <h2>, etc.) allowed in here. Use COBOL-style level numbers to express an hierarchy of headers? 01 Semantics Ruby has mixins; Smalltalk does not. Mixins help much in design. Ruby permits adding methods to individual objects; in Smalltalk, all methods reside in classes. In Ruby, it is practical and somewhat useful to add methods dynamically; in Smalltalk, the practice is gener
