You can't cover it if someone is demanding you make it available in order to be provisioned with some essential service. And of course you can zap an RFID chip

You can't cover it if someone is demanding you make it available in order to be provisioned with some essential service. And of course you can zap an RFID chip too. The specific tech here isn't what people are worried about. to be identified, no implants are required, just your face Not if everyone is wearing a mask ;) But more seriously, the sort of people who worry about this also worry about widespread facial recognition too, so I'm not sure what kind of point this is meant to be. Phones are indeed tracking nightmares but they can also be switched off or left at home without any social expectation you have one with you. A qr code embedded in your skin, that's there specifically for the purposes of allowing governments to rapidly exclude parts of the population from vital services if they don't get injected with something, has very different connotations. At any rate I don't really want to debate the merits or demerits of quantum dots. Like I said, it might be cool, I didn't see any mention of what the dot would actually contain in the papers. But you don't have to be some kind of wild-eyed lunatic to think that maybe building this kind of infrastructure will have bad side effects. Remember that by now a lot of people don't trust public health officials at all. They've been both misleading and misled very routinely throughout COVID. Their judgement is highly suspect. They're incredibly prone to panic, bad use of data and over-confidence in the opinions of academics and scientists. Now they may soon want to mandate injections of vaccines, which do unfortunately have a long track record of safety issues regardless of what the anti-anti-vaxxers may claim. Look up Pandemrix for an example. Allowing public health to efficiently enforce their questionable judgement calls isn't obviously a win.