Back in 2005, George W. Bush suggested that maybe, just maybe, Social Security ought to let some money should be invested in the market. Naturally, Washington reacted as if he had proposed funding retirement by making seniors fight raccoons for loose change behind the Cracker Barrel. We were told this was dangerous. Reckless. Radical. Possibly the end of civilization, or at least the end of the entitlement system as a sacred government-operated mattress stuffed with IOUs.
The idea was simple enough: instead of putting every Social Security dollar into the federal government’s own weird bookkeeping system, take some portion of the incoming payroll-tax money and invest it in the productive American economy. Not in tulip bulbs. Not in Uncle Louie’s alpaca ranch. Not in a cryptocurrency named RetireCoin bearing a cartoon eagle wearing sunglasses. Just something boring, broad, and dull enough to make a Vanguard brochure seem like a Tom Clancy novel: an S&P 500 index fund, the darkest blue of blue chip investments.Now suppose we had taken half of new Social Security payroll-tax receipts beginning around 2005 and invested that half in a broad S&P 500 index fund. The other half would still have gone into the regular Social Security system to help pay current benefits. This was not a proposal to stop paying Grandma. Grandma would still get her check. She might even get it while glaring at CNBC and demanding to know why Pfizer was down three-eighths.
Under a rough model, investing half of the incoming payroll-tax money from 2005 through 2025 in the S&P 500 would have produced a gross investment account of roughly $38 trillion. That is not a typo. It is not $38 billion, which is the kind of number Congress loses in a sofa cushion while looking for a defense contractor. It is $38 Trillion, with a T.
Of course, that gross number is not the same as saying Social Security would have had $38 trillion sitting in the vault, stacked neatly between the Ark of the Covenant and Jimmy Hoffa. Social Security still had to pay benefits during those years. People retired. Checks went out. Medical alert bracelets were purchased. Grandchildren were slipped twenty-dollar bills and told not to tell their parents. If we subtract the continuing cost of paying benefits from the fantasy version where all of this was magically self-contained, the more realistic rough net figure comes down to something like $16.5 trillion to $17 trillion.
That is still an astonishing number. The actual Social Security trust fund was about $2.6 trillion at the end of 2025. So instead of limping along with a fund that Washington keeps warning will be exhausted in the foreseeable future, we might have had a net fund in the neighborhood of $16.6 trillion. That is a difference of about $14 trillion. Fourteen trillion dollars is not walking-around money. That is not “rounding error.” That is not the amount the federal government spends because someone in a subcommittee discovered there are still three counties in America without a federally funded interpretive dance center.
And here is where it gets really irritating.
This period was not exactly a golden escalator ride to prosperity. Anyone who says, “Well sure, the stock market did well, but only because everything went perfectly,” should be required to sit quietly in a room and watch financial news from 2008 on a loop until they apologize to the nearest index fund. Since 2005, we have had the housing collapse, the financial crisis, the Great Recession, the COVID crash, inflation panic, interest-rate panic, recession panic, bank panic, election panic, European panic, China panic, debt-ceiling panic, and the recurring American tradition of yelling “This is unsustainable!” while continuing to sustain it with borrowed money.
The S&P still won.
That does not mean stocks always go up. They do not. Sometimes they fall down the stairs, burst through the screen door, and land in the shrubbery. But over long periods, owning pieces of profitable companies has historically done better than lending money to the federal government so it can write itself a note promising to repay itself later. The Social Security trust fund is not exactly Scrooge McDuck’s money bin. It is mostly a pile of special Treasury securities, which is Washington’s way of saying, “We spent the money, but we left ourselves a very formal Post-it note.”Now, for the truly nervous, let us run a deliberately ridiculous stress test. Suppose the invested half of payroll taxes had not earned the actual S&P returns. Suppose it had lost 10% every single year.
Not one bad year. Not one crash. Not a recession. Not 2008. I mean losing 10% per year, every year, for twenty-one years. That is not an investment model. That is a financial horror movie. That is the stock market being managed by rabid squirrels with margin accounts. That is a mutual fund whose prospectus simply says, “Abandon hope, all ye who enroll.”
Even then, if half of annual payroll-tax contributions had been set aside each year from 2005 through 2025 and the balance had shrunk by 10% annually, the side fund would still have ended up around $3.95 trillion. Compared with the actual trust fund reserve of about $2.56 trillion, even that disaster scenario would be ahead by roughly $1.4 trillion.
That number requires an important explanation, because otherwise someone from Washington will run into the room waving a blue-ribbon commission report and wheezing into a microphone. The $3.95 trillion figure is the value of the side investment fund under the absurd “loses 10% every year” assumption. It assumes benefits are still being paid through the regular Social Security cash-flow system. If you charged all benefits against that side fund alone, then of course it would not work. But that was never the point. The point is that setting aside part of incoming money creates a growing asset pool, even under comically terrible assumptions. Under real-world market returns from 2005 through 2025, that asset pool would have been gigantic.
And no, this does not mean we should turn Social Security into a day-trading app. Nobody needs Grandma checking candlestick charts between “Wheel of Fortune” and the evening news. The point is not speculation. The point is ownership. A broad index fund is not betting on one company. It is buying a slice of American productivity. It is owning part of the companies that make the phones, build the stores, drill the oil, run the railroads, process the payments, sell the groceries, manufacture the drugs, ship the packages, write the software, and generally keep the country functioning while Congress holds hearings about why nothing functions.
A system like this would also have changed the psychology of Social Security. Instead of workers seeing payroll taxes vanish into the federal fog, they would know that at least some part of the money was being invested in real assets. Not promises. Not slogans. Not “the full faith and credit” of people who cannot pass a budget without theatrical hostage negotiations. Real ownership in real companies.
Imagine what that much sustained investment in the American economy could have meant. Not every dollar would have gone directly into a new factory or a new job, because index funds mostly buy shares that already exist. But long-term investment strengthens markets. It lowers the cost of capital. It supports expansion. It helps companies grow, hire, modernize, research, build, and compete. It also gives ordinary workers a direct stake in the growth of the country. The people paying into Social Security would not just be funding benefits for today’s retirees. They would be building a national nest egg tied to the success of American enterprise.
Instead, we chose the mattress.
Every year, payroll taxes come in. Benefits go out. The surplus, when there is one, gets lent to the federal government. The federal government spends it. The trust fund receives a Treasury security. Everyone in Washington puts on a serious face and says the system is “invested.” Technically, that is true. It is invested in the same sense that giving your brother-in-law $500 and receiving a napkin that says “I owe you big-time” is fixed-income investing.
The obvious reply is that it is too late now. We missed the chance. The 2005 train left the station. The conductor retired, the station was renamed after a senator, and the tracks are now part of a federal high-speed rail study that will be completed in 2147.
But it is not too late.
We do not have to fix the entire system in one heroic act. Washington loves heroic acts because they create press conferences, commemorative pens, and bipartisan photographs in which everyone looks as if they just smelled smoke. But Social Security could begin modestly. Set aside a small percentage of annual payroll-tax receipts into a true national investment fund. Make it broad. Make it boring. Make it automatic. Make it legally protected from congressional raids, which means putting it behind more locks than Fort Knox, NORAD, and a teenager’s phone.
Start with 1%. Or 2%. Or 5%. The exact number matters less than the principle: stop treating every incoming dollar as if it must be spent immediately or loaned to the same government that is already broke. Begin building an actual asset base. Let compounding do what compounding does. It will not solve every problem overnight. It would not make actuarial deficits disappear like a magician’s assistant but it would move the system in the right direction.The best time to have begun was twenty years ago. The second-best time is now. The worst time is always “after the next election,” which in Washington means approximately never.
Social Security does not need a casino. It sure as hell does not need any more immoral politicians promising the elderly the economic impossible. It needs a savings account with ambition. It needs a portion of its annual inflow tied to the productive economy instead of buried in the federal mattress. We had a chance in 2005 and ran away from it screaming. Fine. We are older now. Presumably wiser. Certainly more indebted.
Maybe it is time to stop pretending the mattress is a retirement plan.










