If you want to understand blocks, then learn Smalltalk

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When I was taking a look at Ruby to learn what is it like, I faced a concept called "block". But I never got it bacause you could do everything with a block, also with traditional methods you learned so far. So I asked myself, why would a human being invent something like block? Maybe this is because of the people who tries to explain the blocks or because of my low IQ but this was the case for me when learning Ruby.

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