Loop engineering convinced me. Not because it’s clever — because done right, it doesn’t bankrupt you. This post captures where I’ve landed: a responsible way to run loops at scale without burning a hole in your pocket. Naysayer → Believer I’ve been a vocal naysayer. Not because the approach doesn’t work — it works. The costs never justified it. No surprise — the people singing its praises usually aren’t the ones paying the API bills. But when Peter & Boris tell you something, you look closer.