I think this will create even more confusion, because on the one side Bitcoin people are telling people that Bitcoin is digital money and that the coin in Bit
coin is not a physical coin and now people create physical Bitcoin Banknotes.

If I was a newbie and I was presented with this Bitcoin banknote, then I would be totally confused. I also doubt if the Singapore government will tolerate people that are printing currency, even if they are just printing the "carrier" of that currency in the form of a Banknote.
