QR codes have taken over cities. It’s hard to walk a block without seeing them. Shops, bars, post offices and even roller coasters have adopted the technology.
They are practical and friendly. Pointing a mobile camera to perform an action seems like a gift from the future, but quick reaction codes are not a new invention.
They were created in 1994, but until a few years ago they only fulfilled specific roles, such as marketing campaigns.
They didn’t seem like they were going to take over everyday life. The pandemic changed the scenario. Fear of Covid transmission. . .
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