You can’t pick up a newspaper or magazine full of ads without seeing a QR Code – a funny dotted square that isn’t very attractive. The first time I saw one I ...

Let me come clean: For way too long now, I’ve been excited about the 2D optical code format called QR Code. I even convinced TidBITS to put one on every article page for a while. I don’t get a ...

QR codes are certainly practical, but they’re also dumb and stupid and ugly and instantly ruin almost anything they’re placed on. That’s why this tech that uses simple light as a replacement for QR ...