So, guarantee 100% reliability forever? Sounds obvious, but is it easy, or even possible? Better to stop the reaction in its tracks and allow the engineers to

So, guarantee 100% reliability forever? Sounds obvious, but is it easy, or even possible? Better to stop the reaction in its tracks and allow the engineers to see where things go wrong than to assume the battery will always work. I'm sure the engineers behind the Boeing 787 and the Galaxy Note 7 also believed with confidence that their batteries would be fine.