Thanks, this was worth pointing out. I should rephrase: it is not that the issue is “not solved”, but rather that it is difficult to measure whether these QR c

Thanks, this was worth pointing out. I should rephrase: it is not that the issue is “not solved”, but rather that it is difficult to measure whether these QR codes make much of a difference considering apparently lax enforcement and the already-low infection rates. It’d be interesting to see if, implemented in a stricter manner, they could make a difference in a country like the US; the concept does seem sound.