On Thursday, in honor of Barack Obama’s 50th birthday, the Dow dropped ten points for every year he has walked among us. It was the ninth largest drop in history. We should be relieved he wasn’t turning eighty.

The markets are apparently concerned that the entire global economy may be “stalling.” You don’t say? Observant fellows, these market chappies.

And yet, in a certain sense, these are still the good times. At the end of the week, U.S. Treasury yields plunged to Eisenhower-era rates. America, explained Ethan Harris of Bank of America Merrill Lynch, “still gets the safe haven money.” That’s to say, as crazy as Washington is, Europe is perceived to be crazier. In confirmation of the point, over in Italy, which is (believe it or not) a G7 economy, police raided Moody’s and Standard & Poor’s over allegations that all the meanie things that the rating agencies have been saying about the Italian economy were having an impact on Italian stock prices. Apparently that’s a crime in Italy. They’re not yet shooting the messenger. But they are dragging him through the streets in chains pour encourager les autres. Good luck with that.

But I wonder if “the safe haven money” is quite as safe as its investors assume. Under the “historic” “resolution” of the debt crisis (and don’t those very words “debt crisis” already feel so last week?), America will be cutting federal spending by $900 billion over ten years. “Cutting federal spending by $900 billion over ten years” is Washington-speak for increasing federal spending by $7 trillion over ten years. And, as they’d originally planned to increase it by eight trillion, that counts as a cut. If they’d planned to increase it by $20 trillion and then settled for merely $15 trillion, they could have saved five trillion. See how easy this is?

As part of this historic “cut,” we’ve now raised the “debt ceiling” — or, more accurately, lowered the debt abyss. Do you ever discuss the debt with your neighbor? Do you think he has any serious intention to repay the 15 trillion racked up in his and your name? Does your congressman? Does your senator? Look into their eyes. You can see the answer. And, if none of these parties seem inclined to pay down the debt now, what are the chances they’ll feel like doing so by 2020 when, under these historic “cuts,” it’s up to 23-25 trillion?

Like America’s political class, I have also been thinking about America circa 2020. Indeed, I’ve written a book on the subject. My prognosis is not as rosy as the Boehner-Obama deal, as attentive readers might just be able to deduce from the subtle clues in the title: After America: Get Ready For Armageddon. Oh, don’t worry, I’m not one of these “declinists.” I’m way beyond that, and in the express lane to total societal collapse. The fecklessness of Washington is an existential threat not only to the solvency of the republic but to the entire global order. If Ireland goes under, it’s lights out on Galway Bay. When America goes under, it drags the rest of the developed world down with it. When I go around the country saying stuff like this, a lot of folks agree. Somewhere or other, they’ve a vague memory of having seen a newspaper story accompanied by a Congressional Budget Office graph with the line disappearing off the top of the page and running up the wall and into the rafters circa mid-century. So they usually say, “Well, fortunately I won’t live to see it.” And I always reply that, unless you’re a centenarian with priority boarding for the ObamaCare death panel, you will live to see it. Forget about mid-century. We’ve got until mid-decade to turn this thing around.

Otherwise, by 2020 just the interest payments on the debt will be larger than the U.S. military budget. That’s not paying down the debt, but merely staying current on the servicing — like when you get your MasterCard statement and you can’t afford to pay off any of what you borrowed but you can just about cover the monthly interest charge. Except in this case the interest charge for U.S. taxpayers will be greater than the military budgets of China, Britain, France, Russia, Japan, Germany, Saudi Arabia, India, Italy, South Korea, Brazil, Canada, Australia, Spain, Turkey, and Israel combined.

When interest payments consume about 20 percent of federal revenues, that means a fifth of your taxes are entirely wasted. Pious celebrities often simper that they’d be willing to pay more in taxes for better government services. But a fifth of what you pay won’t be going to government services at all, unless by “government services” you mean the People’s Liberation Army of China, which will be entirely funded by U.S. taxpayers by about 2015. When the Visigoths laid siege to Rome in 408, the imperial Senate hastily bought off the barbarian king Alaric with 5,000 pounds of gold and 30,000 pounds of silver. But they didn’t budget for Roman taxpayers picking up the tab for the entire Visigoth military as a permanent feature of life.

And even those numbers pre-suppose interest rates will remain at their present historic low. Last week, the firm of Macroeconomic Advisors, one of the Obama administration’s favorite economic analysts, predicted that interest rates on ten-year U.S. Treasury notes would be just shy of nine percent by 2021. If that number is right, there are two possibilities: The Chinese will be able to quintuple the size of their armed forces and stick us with the tab. Or we’ll be living in a Mad Max theme park. I’d bet on the latter myself.

Did you know there’s a U.S. Bureau of the Public Debt? Hey, why not? There’s a bureaucracy for everything else. I’m sure somewhere or other there’s a CBO graph showing that by 2050 all federal revenues will be going either to the Chinese Politburo or to the lavish pension plans of retired officials of the Bureau of the Public Debt. At any rate, the BPD is headquartered in Parkersburg, West Virginia, and it’s easy to find because it’s the only building in the state other than the Klan lodge not named after Robert C. Byrd. The Bureau uses as its motto the words of Alexander Hamilton: “The United States debt, foreign and domestic, was the price of liberty.”

But in the early 21st century foreign and domestic debt is a threat to liberty. As the Brokest Nation in History drowns in its profligacy, its commissars will grow ever more rapacious and desperate. If you think Obama’s dreary attempt to blame America’s woes on corporate-jet owners is unbecoming to the chief of state, wait till he’s reduced to complaining about two-car families. By the way, if you’re reading this out on the runway at O’Hare, what’s the difference between a corporate jet landing and Obama flying in? With Air Force One, even when they switch the engines off, all you can hear is the whining.

No author writes a dystopian apocalyptic doomsday book because he wants it to happen: Apart from anything else, the collapse of the banking system makes it hard to cash the royalty check. You write a doomsday book in hopes you can stop it happening. But time is running short. If you think we’ve got until 2050 or 2025, you’re part of the problem.