re: Spinoff: When do you think we will do away with hard/paper currency in the US?

The paper currency will remain for the foreseeable future, but I think you'll see a growing movement to eliminate the $100 and $50 bills. We will get to the tipping point where the illegal uses of those denominations outweighs the legal uses and/or inconvenience of their elimination.

I don't think anyone will argue that large bills are the preferred method for drugs, money laundering, and tax evasion - the latter of which being the part the pisses me off the most.