Credit Card Paper Wallet?

[crazy_rabbit]

I saw this online and it seemed quite interesting-

http://blog.laptopmag.com/qr-code-killer-touchcode-opens-content-by-tapping-paper-to-screen

Unfortunately it's closed source, but it would be interesting to be able to 'sign' transactions by just tapping a card on a screen.

[bitlybit]

english not my mother language but tapping is different thing than push card on touch screen

i think differnt because qr code use camera this use prepared paper with little mountains to activate touch on screen
i think that normal person cannot print this in 2d printer but qr code can

but why spend bitcoin im not understand because bitoin rise in value only better to hold and rich than spend