Oops! OOP's not what I thought
summary
Claim: OOP’s core is messages & late binding, not objects or classes. Evidence: historical sources (Smalltalk, Alan Kay), examples (Ruby send, Python closures modeling objects), and systems (Erlang actor/mailbox model powering fault‑tolerant telecom and WhatsApp) that actually work. Surprising pivot: links to lambda calculus and 1930s ideas blur the FP/OOP divide. Practical demo: implement object behavior as a responder function closed over state, showing messaging + late binding yields resilient, composable systems.
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