No, but it tells me what types the tuple elements are, and thus indirectly (I know where to look to find out), how I can use them, and what calling functions on

No, but it tells me what types the tuple elements are, and thus indirectly (I know where to look to find out), how I can use them, and what calling functions on them will do. It doesn't tell me their significance for the business logic, that's what variable names are for.