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  1. skybrian
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    Lazy data structures are neat, but laziness by default seems like a bad idea due to the confusion it causes. In a more normal programming language, a lazy data structure would contain a function...

    Lazy data structures are neat, but laziness by default seems like a bad idea due to the confusion it causes. In a more normal programming language, a lazy data structure would contain a function that you call to get the next value, rather than implicitly applying a function when reading what appears to be an ordinary value.

    To be fair, making it the default does avoid a what color is your function problem by making ordinary data structures and lazy data structures have the same interface, which could be important when using laziness extensively.

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