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Home » TRIGGERnometry: w/ Niall Ferguson on Global Debt Crisis (Transcript)

TRIGGERnometry: w/ Niall Ferguson on Global Debt Crisis (Transcript)

Here is the full transcript of historian Sir Niall Ferguson’s interview on TRIGGERnometry Podcast with hosts Konstantin Kisin and Francis Foster, January 5, 2026.

Brief Notes: In this return to Triggernometry, historian Sir Niall Ferguson issues a stark warning about the unsustainable levels of indebtedness currently paralyzing the Western world. Ferguson explains “Ferguson’s Law”—the tipping point at which a great power spends more on debt interest than on national defense—and why the United States officially crossed this dangerous threshold in 2024.

He breaks down the finite and often painful options for exiting a debt crisis, from the “miracle” of AI-driven productivity growth to the more likely scenarios of default or inflating away liabilities. Beyond the macroeconomics, Ferguson makes a passionate case for financial literacy, arguing that those who remain ignorant of bond yields and interest rates in 2026 are destined to be the primary victims of the coming economic realignment.

Welcome Back to Triggernometry

KONSTANTIN KISIN: Sir Niall Ferguson, welcome back to Triggernometry.

NIALL FERGUSON: Good to be back.

KONSTANTIN KISIN: You are one, of course, one of our favorite historians to have on the show. And the thing that we want to talk to you about today is money. One of the things you have been prominent in trying to raise attention for and awareness of is the level of indebtedness the Western world is in, particularly as it relates to our military spending, because there’s some historical patterns that are very unfavorable on that side of things. We’ll get into that.

But we thought you being one of the world’s most interesting and prominent historians, the first thing we should talk about is something you wrote about immediately after the financial crisis in your book called “The Ascent of Money,” which is money, debt, finance. And the best place to start, I think, is right at the very beginning, which is: what is money and where does it come from?

The Origins and Nature of Money

NIALL FERGUSON: Well, it’s great to be back. When you said we want to talk about money, I thought, “I don’t owe them anything.” I had the involuntary Scottish reaction. I nearly touched my wallet just to make sure it was there.

Money is a very ancient thing. It’s the way in which human beings transact that is superior to barter. And so we find thousands of years ago, you know, 2,000 years before Christ, that IOUs are being carved in little pieces of clay in ancient Mesopotamia. And that’s really the origins of money.

Because if I owe you two silver rings, it’s much more convenient to just write that down than for me to say, “I think that’s roughly three sheep or maybe two and a half goats.” So money is just a way of making exchange much smoother than if you tried to do it by barter. I mean, if you’ve ever tried barter, you’ll realize immediately the difficulty that sheep and so forth are not that fungible.

So that’s the key concept behind money. And almost anything can serve as money. When you say money these days, there are still people who think that it’s pieces of paper or cloth, banknotes. Those have largely gone extinct in England, as far as I can see. But Americans still tend to think of money as dollar bills.

Older people will remember coins, round metal objects. So that was money for quite a few centuries, but that’s relatively recent by historic standards. The first money is, as I said, clay tablets with inscriptions on them. Shells have been used as money. Large, inconveniently large stones have been used as money. Pretty much anything can be used as money.

Stephen Colbert once asked me on the Colbert Report, “Am I money?” And I said, “Yes, if you want to be. If you want to be a medium of exchange, then you can be money.”

The Role of Trust in Money

KONSTANTIN KISIN: And I imagine that there is a bit of a transition between barter and money in the sense that an IOU carved in a tablet, it implies a level of social trust or some sort of cultural adaptation and innovation to facilitate. Is that a fair assumption?

NIALL FERGUSON: It’s important for money to work that it should be trusted. And in fact, I think I once wrote in “The Ascent of Money” that it’s trust inscribed, particularly if it’s a piece of clay. I mean, its intrinsic worth is almost zero. But if it says that it’s exchangeable for two silver rings or three sheep, then you kind of have to believe that a counterparty will agree that that’s the case.

So there’s an element of trust. That is why we don’t really encounter money in prehistoric societies. It’s something that really is associated with the beginnings of civilization.

Of course, today most money is invisible. It really exists in electronic ledgers of banks, and that’s most money. Today, relatively small amounts of money consist of banknotes and coins, tiny in some cases. And so most money is in fact invisible electronic items in bank accounts. And in fact, most money is created by banks when they credit somebody with an amount of money.

We all have to trust banks for a system based on fractional reserve banking to work. You mentioned that “The Ascent of Money” was written after the financial crisis. That’s incorrect. It was written before the financial crisis and published just before the failure of Lehman Brothers. Which tells you that I anticipated the financial crisis, which I did, because the book was begun in 2006 at a point when very few people realized a huge financial crisis was coming.

But that was my motivation for writing it. I was very confident that a large financial crisis was coming. And at the heart of that crisis was a loss of trust in banks. Also young, you may not remember the lines outside Northern Rock. There were genuine bank runs in Britain and the United States. And so at the heart of modern money is the role of banks.