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A comment on Is your programming language unreasonable?. Parent comment

Re:Is your programming language unreasonable? by sonyandy on Wednesday February 04, 2015 @01:58PM (#8998849)
To "what's the point of immutable objects?": runtime polymorphism + maintaining invariants (since immutable, at the time of construction).
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Re:Is your programming language unreasonable? by kyllo on Wednesday February 04, 2015 @03:44PM (#8999616)
Why do you need objects to get runtime polymorphism?

Here's a counterexample of runtime polymorphism without objects: http://clojure.org/runtime_polymorphism

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