Just crossed my mind today. Will it make sense if someone will create a paper money equivalent of bitcoin? And the coins will be the smallest unit of bitcoin, Satoshi? Like the currency today? I think it is okay if it became a globally accepted currency. And it will serve as a payment for everyday goods. What do you think?
If you mean to print a wallet and the keys to it on a piece of paper and use that as payment like a dollar note, that will not work.
The bitcoins are still on the blockchain and everybody who gets that piece of paper will have all access date to remove them to a different address.
Very soon the coins will not be anymore on the address shown on the paper, so the paper note becomes worthless.