David Andolfatto had a provocative and open-ended tweet a few days back: The difference between money and debt. pic.twitter.com/CSQuLzUJPU — David Andolfatto (@dandolfa) April 26, 2019 We see two coloured pieces of paper, both with an old dead President on it. They each have a face value of $500. Both are issued by a branch of the government, the $500 McKinley banknote (at right) by the Federal Reserve while the $500 Treasury bond (at left) by the Treasury. Both are bearer instrument: anyone can use them. So why do we bestow one of them the special term "money" while the other is "credit"? I mean, they seem to be pretty much the same, right? The word money is an awful word. It means so many different things to different people that any debate invoking the term is destined to go off-track within the first fifty characters. So I'm going to try and write this blog post without using the term money. Why are the two instruments that David has tweeted about fundament...