Poses the general question, which approach is "better"? The focused tool is more efficient and easier to understand, but things tend toward convergence of previ

Poses the general question, which approach is "better"? The focused tool is more efficient and easier to understand, but things tend toward convergence of previous separate functions. Is it the way of the world that we start with focused tools to introduce a concept, and turn it into a feature of another product to gain mass acceptance? What then pushes the gravity of convergence toward one device or another?