Would you notice, if you did? Remember when the guy tested all the USB cables? Some of them were downright broken, but many worked just fine (except not to spe

Would you notice, if you did? Remember when the guy tested all the USB cables? Some of them were downright broken, but many worked just fine (except not to specification, so were perhaps damaging or even dangerous, but they worked), so most people would never notice that something was amiss. I’ve also heard of counterfeit books: they look the same as real books, but are of lower quality print and paper. Would you notice? Would you just think the book wasn’t as good quality as other books, without questiining whether you actually got a counterfeit product? I’m not convinced I’d necessarily notice.