Usefulness is relative to each user. I'm a software engineer who likes technology too. I think such things would be useful. I guess I'm just objectively wrong?

Usefulness is relative to each user. I'm a software engineer who likes technology too. I think such things would be useful. I guess I'm just objectively wrong? And like... food going bad is a problem that actually exists, so I'm not sure what you mean by "inventing problems"