"If I make $50,000 a year and get a 30 year mortgage for $200,000 my debt is now 400% of my GDP."
Sure, but so is your asset holdings. That $200K is backed by a $200K house. What backs our national debt or currency? Nothing.
So now you agree that the chart is useless without any reference to the assets that back the debt. Welcome to the club.
>>What backs our national debt or currency? Nothing.
Are you saying the United States has no assets?