Quote:
Originally Posted by calgarywinning
Honestly amazing. Great case of use and answers all my questions. Clearly, I didn't know you could encode so much in a QR.
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Of note: there is nothing special about the QR code. It's just a way to encode text in a graphical format. We could equivalent do this whole vaccine passport by having our text-based vaccine passports on our phone. The obvious problem is there's no way to effectively send that text to someone who wants to verify it. (You could text it to them but this would take forever). The QR code makes it scannable so the whole process is dramatically faster.