...that the operator overload that gives the data that is controlled is rarely needed. Most...

In principle, yes. If every data member’s type `T` supports `T()`, I consider it having...

...constructor is only implicitly present if all data members have a default constructor and no...

Seq's are builtin data types that need *more* explanations then aa's and slices...

...issues/4567
[1]: https://medium.com/dunnhumby-data-science-engineering/how-to-simplify-debugging-unit...

...often creates another alias to the same data and/or state or part thereof.

This...

...set of operations in the form of data flow analysis. For sufficient and best experience...

Slicing doesn't copy the underlying data. It just gives a range which refers to...

...effectively taking a copy of the underlying data the range captures (and its lifetime). But...

...where such a data structure provides a sequential view into its data via a range...