Amazing I'd love to see that museum. I would like to see a museum with tech that is supposed to make things easier but makes things harder. I stood behind somebody fumbling about with their phone to pay with a QR code, while I just swiped my card. done in quarter of the time.,(reply>), QR Codes are a sort of barcode invented in japan in 1994, it was never to "make things easier", it's used cause it can contain more data than a classic barcode. Don't try to be a smartass if you lack the smart part.