I believe they are the only real currency the world has ever known but at the same time unless you have physical what do you really own if the dooms day alarmists are right and fiat is worthless contracts and shares would be meaningless and any investment other than physical would be valueless but what do I know ... In that case Rice would hands down be the winner???
just my out loud thought on the subject Value in anything is based on usefulness
that thought never sways me from trading in it though LOL