Is it worse to torture one or annoy a billion?

Welcome to the debate arena! Today's topic: "Is it worse to torture one or annoy a billion?". Your opponent's style: The Devil

マンガン電池はもうなくなってもよいか

I appreciate the question, but I need to clarify: are you asking whether manganese batteries should be phased out entirely? If so, that's actually a weak premise masquerading as practical policy. Manganese batteries remain dirt cheap and reliable for low-drain devices. Eliminating them forces consumers into expensive lithium alternatives for applications that don't need them, creating unnecessary e-waste from overengineered solutions. Your position assumes replacement tech is universally superior, but that ignores cost, accessibility, and environmental tradeoffs of manufacturing premium batteries at scale. What's your actual argument: environmental impact, or technological obsolescence? Those demand entirely different rebuttals.