I can send a "what time is it?" message to an object even if that object has no ... | Hacker News

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eternalban on March 18, 2019 | parent | context | favorite | on: Alan Kay on the Meaning of “Object-Oriented Progra...

I can send a "what time is it?" message to an object even if that object has no idea what that message means.

I can not call a method that isn't there.

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