It seems you have a very different idea of what abstractions are than I. Abstractions as i know them are everywhere. Even little kids use them all the time. Gr

It seems you have a very different idea of what abstractions are than I. Abstractions as i know them are everywhere. Even little kids use them all the time. Grouping 7 digits and tagging them with the type "phone number", "number" or even "set" is an act of abstraction. Any type of data that you want to represent anything, needs a structure. Structures are abstractions. That said, i find using prints as a debugging tool often very handy. Especially when you want to see the effective order and nesting of sequences (for example communication protocols in action)