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by throwaway66666 2529 days ago
Well, the fact that one of the biggest phone OS supports QR codes natively in the camera, severely reduces the friction that comes from "what's that weird thing, oh it's called a QR code, here's download this app on the appstore. No, not that one, it has a bitcoin miner in it. Yes the free one". Just point your phone to it and it works! Now whether the world outside caught on, or not... where I am from definitely not, however the biggest barrier was the problem I described above.