Public Cash Money
A methodological note. This article contains no personal attacks, no moral judgments, and no political opinions. It contains only arithmetic — applied to verified public data about the monetary system I have been documenting for 26 years. Elon Musk is used as an example not because he is a villain, but because he is the most visible current illustration of a structural mechanism that applies equally to every large concentration of wealth in a debt-based monetary system. The mathematics does not care about the name on the account.
You will remember, from my previous article in this section, that X — the platform owned by Elon Musk — suspended my account @postaperdavide for “inauthentic behavior.” The behavior in question was posting mathematical facts about the global monetary system, with sources cited and calculations shown.
I thanked Mr. Musk for that decision, because it forced me to build this website — where the same mathematical facts are now accessible to anyone in the world, without passing through any algorithm that might decide $2+2=4 is inauthentic.
Today I want to offer a second thank you. A more specific one. Because in banning me, Mr. Musk inadvertently gave me the perfect illustration for a concept I had been trying to explain for years — and that I can now explain using his own numbers.
1. Start with Your 100 Euros
In a previous article, I asked a simple question: if you have 100 euros in your pocket — genuinely yours, earned through your work — where did those 100 euros come from?
The answer, in a debt-based monetary system, is precise: someone borrowed them into existence. Every euro, every dollar, every unit of currency in circulation was created through a loan. Before you could earn those 100 euros, someone had to borrow them from a bank, which created them by adding a number to a ledger. The bank charged interest on that creation. The interest was never issued alongside the principal. So somewhere in the system, there is a debt of 100 euros that corresponds to your 100 euros — and that debt is accruing interest that the system structurally cannot cover.
This is the $1.x > $1 design bug, illustrated at the scale of your wallet.
Now scale it up.
2. The Arithmetic of $700 Billion
As of April 2026, Elon Musk’s net worth is estimated at between $636 billion (Bloomberg Billionaires Index) and $839 billion (Forbes real-time tracker). The difference reflects methodological disagreements about how to value his private company stakes, particularly SpaceX-xAI. For this calculation, I will use a conservative middle estimate of approximately $700 billion — a figure that both major indices would accept as within their range of uncertainty.
In a debt-based monetary system, $700 billion of accumulated wealth corresponds to $700 billion of debt somewhere in the system. Not Musk’s debt — someone else’s. The debt of states, corporations, and households whose borrowing created the monetary mass from which that wealth was ultimately extracted. This is not a moral statement. It is the arithmetic of a system where every unit of wealth in existence corresponds to a unit of debt in existence. The wealth and the debt are two sides of the same ledger entry.
Conservative estimate of Musk net worth (April 2026)~$700B
Corresponding debt in the system (1:1 by construction)~$700B
Average interest rate on US debt (verified, March 2026)3.365%
Annual interest cost on corresponding debt~$23.6B/yr
Daily interest cost on corresponding debt~$64.6M/day
Interest cost per second~$748/sec
Sources: Bloomberg Billionaires Index; Forbes Real-Time Billionaire Tracker; US Treasury average interest rate on marketable debt (March 2026). Calculation methodology: verified net worth × verified average interest rate = annual interest burden on corresponding system debt.
Approximately $24 billion per year. $64 million per day. $748 per second. These are the interest costs generated — somewhere in the global monetary system, paid by someone — by the debt that corresponds to Elon Musk’s accumulated wealth. He does not pay these costs. He cannot pay these costs. He did not design the system that produces them. But they exist, they are real, and they are paid — by states, corporations, and ordinary people whose debt was the other side of the ledger entry that created the monetary mass from which his wealth was built.
Your 100 euros generate a few cents of interest cost
somewhere in the system.
Imperceptible. Invisible. Harmless at your scale.
$700 billion generates $24 billion per year.
$64 million per day.
$748 per second.
The mathematics is identical.
Only the scale is different.
3. The Second Cost: The Frozen River
The interest cost is only the first of two costs that large wealth concentrations impose on the economy in a debt-based system. The second is less visible but potentially larger.
In article 13 of this series — “Not Robin Hood: Why the Inflationary Surcharge Is Monetary Physics” — I explained Irving Fisher’s Equation of Exchange: M × V = P × T. Money supply times velocity equals price level times transactions. The velocity of money — how many times each unit changes hands in a given period — is as important as the quantity of money in determining economic output.
Approximately 95% of Musk’s $700 billion is unrealized equity — shares in Tesla, SpaceX-xAI, X, and other entities. It is not circulating. It is not being spent on goods or services. It is not generating transactions. It is frozen — sitting in equity positions that produce no economic activity in the real economy until sold.
$665 billion of frozen monetary mass — money that exists in the system but is not moving — represents a direct reduction in the effective velocity of the global money supply. By Fisher’s equation, reduced velocity with constant money supply means reduced real economic activity. The factories that are not built because that capital is frozen. The workers who are not hired. The goods that are not produced. The transactions that do not occur.
This is not a calculation I can make precisely — the relationship between frozen equity and reduced economic velocity involves too many variables for a reliable estimate. But the direction is certain, and the order of magnitude is significant. $665 billion of frozen wealth in a global economy of $110 trillion represents approximately 0.6% of global GDP sitting idle — not because anyone chose to harm the economy, but because the architecture of a debt-based system that treats money as a good rather than as an index creates structural incentives to accumulate rather than circulate.
4. This Is Not About Musk
I want to be precise about this, because precision is what distinguishes analysis from polemic.
Elon Musk did not design the monetary system. He did not write the $1.x > $1 algorithm. He did not attend the Bretton Woods conference in 1944. He did not fund the Sveriges Riksbank Prize in Economic Sciences to legitimize the theoretical framework that normalizes debt-based money creation. He is not a villain. He is an extraordinarily talented entrepreneur who played the game that the system offered — and played it better than almost anyone in history.
The point is not Musk. The point is the system. In a P.C.M. framework — where money is issued as F.V.I., as a public measurement tool rather than as private debt — the $24 billion annual interest cost on $700 billion of corresponding debt does not exist. There is no corresponding debt. There is no interest obligation. The monetary mass represented by large wealth concentrations is still there — the productive capacity, the equity, the organizational achievement is real and valuable. But the debt that mirrors it in the current system, and the interest that accumulates on that debt, is an artifact of the monetary architecture. Not of the wealth itself.
In P.C.M., large wealth concentrations still have an economic effect — the frozen velocity problem remains relevant, which is why the inflationary surcharge applies to large idle deposits above a defined threshold. But the interest cost — the $24 billion per year that someone pays because $700 billion of wealth exists on one side of the ledger — disappears. Not because the wealth disappears. Because the corresponding debt disappears. Because in a system where money is issued rather than borrowed, there is no debt to generate interest.
In the current system:
$700B of wealth = $700B of debt somewhere = $24B/year of interest paid by someone.
In P.C.M.:
$700B of wealth = $700B of wealth.
No corresponding debt.
No interest.
No $24 billion extracted annually from the productive economy
to service an obligation that exists only
because of the architecture of the monetary system.
5. A Final Note to Mr. Musk
I bear no ill will. I said this in my previous article and I mean it.
Mr. Musk has built extraordinary things. His companies have genuinely advanced human capability in aerospace, electric vehicles, and communications infrastructure. His stated goal — making humanity multiplanetary — is, whatever one thinks of the man, a genuinely civilizational ambition. I do not dispute any of this.
What I dispute — what I have been disputing for 26 years, on whatever platform would have me, and now on my own server where no algorithm can decide the mathematics is inauthentic — is the monetary architecture that makes the $24 billion annual interest cost an invisible tax on the productive economy. Not because Musk specifically accumulated $700 billion. But because any $700 billion accumulated in a debt-based system generates this cost for someone else, somewhere in the world, who probably does not know it exists.
The person paying the $748 per second does not know they are paying it. They see higher taxes, lower public services, slower wage growth, and more expensive mortgages. They blame politicians, immigrants, corporations, globalization — anything visible. They do not see the $1.x design bug running invisibly beneath every transaction they make.
That is what I was posting about on X.
That is what the algorithm decided was “inauthentic behavior.”
That is what this website exists to explain.
$700 billion of wealth.
$24 billion per year in interest costs.
Paid by someone.
Invisible to everyone.
Generated by an architecture
that has been running since Venice, 1374.
This is not a moral judgment.
It is arithmetic.
And arithmetic — as Mr. Musk’s algorithm discovered —
is remarkably difficult to silence.
$2+2=4. Period.
(Still.)
Davide Serra · Systems Analyst & Independent Monetary Analyst
publiccashmoney.com · Former @postaperdavide on X
Net worth data: Bloomberg Billionaires Index (April 2026); Forbes Real-Time Billionaire Tracker (April 2026); TECHi.com analysis (April 2026). Interest rate: US Treasury average rate on marketable debt, March 2026. Equity liquidity figure: Investormint analysis citing ~95% unrealized equity, March 2026. All calculations are first-order estimates clearly labeled as such.
