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The name relational model is quite unfortunate, as it leads to confusion about what the model is (not much to do with 'relationships').

The key concepts are using sets to store data (making you think about your data in a way where duplication of tuples and orderings don't mean anything), and always using values instead of pointers to store your data and references.

I think that these concepts are very useful when it comes to managing data, but they seem to get lost in the all the talk about "relationships" and "sql" and "structured tables".

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