Not all things can be expressed by simple interactions between simple functions. A program doing complex tasks composed of pure functions will be either wide (f

Not all things can be expressed by simple interactions between simple functions. A program doing complex tasks composed of pure functions will be either wide (fewer functions but having many parameters) or tall (long string of functions with few parameters). I do not believe that a simple paradigm shift will help you create arbitrarily complex programs simply. At some point the complexity must be handled.