Excellent answer. Another view (dual and equivalent) is that you are climbing the abstraction layer. You should do it with clean abstractions, that do not leak.

Excellent answer. Another view (dual and equivalent) is that you are climbing the abstraction layer. You should do it with clean abstractions, that do not leak. It's easier to write clean abstractions if they are limited in scope, so it is better if each function does one thing and does it well.