Setters are an anti-feature. They give the illusion that they can be set in any order, but most meaningful classes have invariants that are ambiguous to preser

Setters are an anti-feature. They give the illusion that they can be set in any order, but most meaningful classes have invariants that are ambiguous to preserve with single-value setters. Object Oriented designs jump through some serious hoops to preserve the pretty `object.property = value` syntax. Besides, there are considerable advantages to immutability even in the absence of concurrency. `new_object = frob(object, value)` is generally preferable in the long run.