One could always write down the information. It's hard to see, but in this example, I think he's writing "IOU 0.00008163 Bitcoin."
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Dude, the days of self-sufficient cashiers are over. Not only can they not count change in their heads, a problem that has been going on for years and years, but they would not know the hell to do if power went out and needed to charge to a card. As mentioned above, embossing is practically gone so the CC swipe bars and carbon paper are not an option.
Writing information down and entering it into a POS terminal when the power comes back up? BWHAHHAHA! In what century do you think we live in? The 20th? HAHH
