Fear Of Adding Methods

The naive belief that adding methods to a class always makes it more complicated...

"No," the novice said, "we should use this design instead of that one because it's clearly simpler; it has fewer methods." (...leading to "one big massive 'do it all' method" a GodMethod)

But the thing is.. if all this GodMethod does is to execute an complex object graph that somehow represents a kind of expression language.. is it still a GodMethod?

Where should one paint the line between adding methods or creating a new language (also possible known as a new object graph?)

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