I can attest. I tried explaining Idempotency to people building an industrial laser controller once. Idempotent calls might be used redundantly to ensure that

I can attest. I tried explaining Idempotency to people building an industrial laser controller once. Idempotent calls might be used redundantly to ensure that a particular state or setting exists at a particular time. I don't really care that a particular setting was already set yesterday or an hour ago. Conversely, it's probably a really a good idea to be sure it's on that particular setting right now, before I fire the laser!