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> Callback means some or all of: "I don't know when or where I am being called from, or what the state is of the rest of the program at this time."

This sounds a lot like what function means.




Nope, because you can do static analysis (a.k.a search through your program text) to find out who calls a function and when. The whole point of a callback is that this doesn't work.


How does that help with program state, which changes based on user input?




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