Comment by wat10000
Our national debt is from our unwillingness to raise taxes to balance the budget. Federal spending is somewhat high historically, but not absurdly so. Relative to the economy, it's at about the same level as it was in the 1980s. Measured as a percentage of GDP, the current military budget is the lowest since before the Second World War, aside from a brief period at the end of the 1990s where it was slightly lower.
Comparing budgets by adjusting for inflation doesn't make any sense. A budget that served a country of 218 million in 1976 would, when adjusted for inflation, serve a country of 218 million in 2026. Percentage of GDP is what you want to look at.
But federal spending has been historically high ever since like the New Deal.
Budget-to-GDP ratio in the US is close to 40%. (On that note, you should really consider federal + state combined rather than just federal.)
In early 1900s this same ratio was around 5-10%.
It has been increasing pretty much everywhere during the 20th century. It has made me wonder whether much of the prosperity we've seen and felt might not be a result of this ever-increasing percentage. Essentially we're spending more and more and that makes it feel like we're progressing faster than we are. Eventually it's going to have to stop though and I dread what happens when we do.