Ask HN: Higher order derivatives in everyday life?

Hi all, I read a Bloomberg article today ( https://www.bloomberg.com/news/articles/2022-07-27/fed-raise… ) stating the following: “Powell also said the Fed will slow the pace of increases [to interest rates] at some point” This is referencing a 3rd derivative (loan obligation = base, interest rate = 1st derivative, change in interest rate = 2nd derivative, pace of changes in interest rate = […]