My gut feeling is it grows linearly with any actions over codebase that are not accompanied by both testing and real usage. Well, until tech debt comes into pla

My gut feeling is it grows linearly with any actions over codebase that are not accompanied by both testing and real usage. Well, until tech debt comes into play. But there are many ways to make it non-linear, e.g. one can build a nice high-level structure which becomes irrelevant when goals shift. Or one can sign up for a paradigm which requires better developers and deeper understanding.