I don't find any reason to believe this is inherently problematic. The federal funds rate is ~2.5%, and inflation is ~2.0%, so the real interest rate is approximately 0.5%.
America's current debt-to-GDP ratio is not unprecedentedly high by any means. What is slightly concerning is that our debt-to-GDP ratio is increasing even though the economy is relatively strong.
America's current debt-to-GDP ratio is not unprecedentedly high by any means. What is slightly concerning is that our debt-to-GDP ratio is increasing even though the economy is relatively strong.