I love this analogy, interest rates on tech debt. It's such a natural extension of the phrase tech debt and succinctly gets a point across. I'm gonna have to steal that and start using it at work.
> It's such a natural extension of the phrase tech debt and succinctly gets a point across.
The metaphor of interest was the whole reason that Ward Cunningham initially coined the term "tech debt":
"Technical Debt is a metaphor, coined by Ward Cunningham, that frames how to think about dealing with this cruft, thinking of it like a financial debt. The extra effort that it takes to add new features is the interest paid on the debt."