Origin stories are often contested, but the origin of the Trillion Dollar Platinum Coin is undisputed: A blogger going by the handle Beowulf, whose real name is Carlos Mucha, in a comments section. Propagation stories are another matter. In this post, I will give four versions of how Beowulf’s idea propagated: Brian Beutler’s (2017), Carl Beijer’s (2023), Alex Carp’s (2023), and lastly my own (2013, written as a refutation of Brad DeLong’s proposition that the blogosphere was no longer “vital”). Please note that I’m not at all trying to nitpick about who wrote what when influenced by whom; Beowulf deserves full credit for the idea. My real concern is how ideas propagate (“Great oaks from little acorns grow,” as the saying goes).
Before I go on, however, I should explain the Trillion Dollar Platinum Coin (a.ka. “The Coin”). From Rohan Grey’s very useful #MintTheCoin FAQ:
(This is why you always see the Platinum Coin come up during debt crises.) And:
And now to our four origin stories.
Talking Points Memo’s Brian Beutler plumbs the origins of the coin:
An American lawyer writing under the pseudonym Beowulf first explained the platinum coin concept in the comments section of a post titled ” Repeat After Me: The USA Does Not Have A ‘Greece Problem’,” written by Marshall Auerback and published on a blog called The Center of the Universe.
His comments caught the attention of other writers, including management consultant Joe Firestone (.pdf), who pressured him to expand on the idea. “He eventually just broke down and wrote something on it,” said Stephanie Kelton, an economics professor at the University of Missouri, Kansas City, and an early evangelist of the platinum coin model, in a telephone interview. Kelton is the creator and editor of a website on economic policy called New Economic Perspectives where Firestone and Auerback are both contributors.
“It’s a variation on a theme that many of us have been writing about for a long time,” Kelton said. “If you boil things down to who issues the currency, you can do it via the bank, or you can have the government do it. This goes way back in the academic literature. … Now it’s being referred to as the magic coin and a gimmick, and certainly it has that aspect to it — but this law basically says the U.S. currency can come from the U.S. government. That’s really all the coin is. It doesn’t do anything terribly scary from my perspective. It doesn’t have any danger economically.”
Beutler’s account accords with my recollection. (Joe Firestone in fact blogged on The Coin here at Naked Capitalism in 2013, 2015, and again in 2015, at least, and also prolifically on the now-defunct blog for which I was the administrator, Corrente.) But we don’t have to rely on my recollection; via Know Your Meme (!!!), we find that the Wayback machine has archived Auerbach’s post and Beowulf’s comment, dated May 24, 2010:
Curiously enough Congress has already delegated to Tsy all the seignorage power authority it needs to mint a $1 trillion coin (even numismatic coins are legal tender at their face value and must be accepted by the Federal Reserve)– the catch is, its gotta be made of platinum (ditto the balls of any President who tried this). So for a 1 oz. coin, Tsy would net only $999.998 Billion :o)
(k) The Secretary may mint and issue platinum bullion coins and proof platinum coins in accordance with such specifications, designs, varieties, quantities, denominations, and inscriptions as the Secretary, in the Secretary’s discretion, may prescribe from time to time.
So there is your origin. (Beowulf’s idea was originally expressed in a collegial discussion in a long comment thread involving several MMTers, including Scott Fulwiler.)
We now move to 2023, where — because of yet another stupid debt crisis — the coin has become a topic of conversation once more.
May 10, 2023. From Carl Beijer, “Thank a comments section guy for the trillion-dollar coin“:
The idea for the trillion dollar coin came from a guy named Carlos Mucha, who posted about it under the handle Beowulf more than a decade ago. Mucha does not endorse MMT.
Americans generally became aware of the idea during a surge of media coverage during Dec 2012 / Jan 2013
Again, as Mucha puts it himself, ‘in terms of popularizing the idea I’d say Cullen Roche (got the Wall Street media guys like Weisenthal interested) & Jamie Galbraith (put the bug in the ear of economists like Krugman) took the leading oar.’ Mucha adds that ‘neither Roche and Galbraith really then identified as MMTers,’ and that “to be fair I did discuss it at [Brad DeLong’s] blog comments as well
Beijer’s alleged link to Beowulf’s comment is in fact a link to an article from Cullen Roche in his blog, Pragmatic Capitalism, about the comment, and Roche, sadly, does not give a link to the original comment on his own blog (let alone the original comment at Mosler’s Center of The Universe). However, the date on Roche’s post is July 7, 2011, not May 24, 2010. Beijer carefully does not say that Beowulf’s comment at Roche’s blog is the original comment; had he done so, he would simply have been wrong on the facts.
May 27, 2023. From Alex Carp, New York Magazine, “The Man Who Invented the Trillion-Dollar Coin“:
About a dozen years ago, a pseudonymous commenter on a financial website, writing under the name Beowulf, presented an unusual solution for a debt-ceiling standoff: If the federal government was at risk of default, and Congress couldn’t agree to either cut spending or raise the borrowing limit cleanly, couldn’t it simply mint a trillion-dollar coin?
As we know, there are two candidate “financial websites”: The Center of the Universe (May 24, 2010), and Pragmatic Capitalism (July 7, 2011). It would have been nice if Carp had been able to decide on the correct one.
“Congress screwed up,” Beowulf wrote [when and where?]. By passing the law, it had given the president the authority to direct the secretary of the Treasury to mint a coin of any value — say, $1 trillion — and deposit it in the Federal Reserve, which would be legally obligated to accept it. Ultimately, the coin’s deposit would result in $1 trillion in government revenue or, with a coin of a different denomination, however much was needed to continue to pay its bills and avoid a default. “The catch is, it’s gotta be made of platinum,” Beowulf wrote. “Ditto the balls of any president who tried this.”
I love the “balls of platinum” trope, but it doesn’t appear in Beowulf’s comment of May 24, 2010. Where the quote appears I don’t know, and Carp doesn’t say, but what I can say is that I ran the following Google search:
There’s a lot of other interesting material from Mucha (nee Beowulf), but as far as getting The Coin’s origin story, I have to say that New York Magazine is even worse than Beijer, and Beijer was bad.
January 9, 2013. My post, Imminent Death of the Blogs Predicted, Except Not. My goal in that post was to refute Brad DeLong’s proposition that blogs were “no longer vital.” I did so by using the origin of The Coin (on a blog) and its subsequent preservation and propagation until it reached the mainstream (through blogs). My post at NC was a cross-post from Corrente, the blog for which I was then the administrator. Corrente ran under Drupal, and I had actually been able to construct a database of all the articles on The Coin that I could find. (The database is now gone, along with the site, since I could no longer afford to run the server.) Interestingly, when I stacked up all the links, they formed a power curve that shows successful propagation:
I also used the database to select by date — a few links at first (left hand side of the curve) then many (right hand) — and convert the results into “slides” (1–6). Here is the slide 1, illustrating that the origin of The Coin was at Warren Mosler’s The Center of The Universe:
Here is slide 4, where we see (much later) Cullen Roche’s post at Pragmatic Capitalism:
And here is slide 5, showing mainstream acceptance:
My comment on slide 5:
#5 Phase 4 presents an important inflection point, as PPC [The Coin] enters the mainstream through Felix Salmon of Reuters, Matt Yglesias, and influential law blogger Jack Balkin. I don’t think it’s a coincidence that PPC [The Coin] was presented in Naked Capitalism (third ranked econoblog by traffic) immediately before the new phase began. Felix Salmon linked to Corrente; Matt Yglesias was prompted to cover the PPC by a reader citing Beowulf at FDL; and Balkin cites to the same Beowulf post, as well as a post by letsgetitdone, this time at FDL. Other MMTers and econobloggers like Warren Mosler, Tom Hickey, and Scott Sumner pile on.
In the post, I describe all the phases of The Coin’s successful propagation in similar detail.
I was motivated to write this post partly to [looks heavenward piously] correct the record, partly to defend the blogosphere’s importance, then and now, and partly to defend the honor of my own blogs, Naked Capitalism and (then) Corrente. I was also, quite frankly, shocked at New York Magazine’s sloppiness, and I hope any Google search brings up this post along with it.
More importantly, however, dear members of the NC commentariat, Beowulf’s Coin began as a comment, and was nurtured by unpaid and obscure bloggers who believed in it, until it caught fire. Perhaps the same will happen for one of your comments! It really is possible, as I have shown! Beowulf’s comment sets a high baseline, however, do remember.
 Other propagation story conflicts arise over the issue of whether The Coin is an MMT idea or not. Certainly Beowulf was not an MMTer (Rohan Grey is). The Coin is, however, certainly MMT-adjacent. MMTer Stephanie Kelton invented and propagated the #MintTheCoin hashtag, for example. Ideologically, The Coin makes it clear that Federal taxes don’t fund Federal spending, a key MMT insight. Marshall Auerbach and Joe Firestone were also MMTers. Which doesn’t make everybody who advanced The Coin project an MMTer!
 Anybody who jokes tendentiously about the physical characteristics of The Coin — and that’s a lot of people — doesn’t understand the issue. The issue is the law that permits The Coin to be minted. If the law said “giant stone wheels,” or “cardboard,” or “cheese”, instead of “platinum,” the implications of the would be the same.
 My recollection is that DeLong has kind enough to link to my post with approbation, but here again we have link rot, and this is the closest I can come:
 I should have embedded all the links, but the links were all in the pages generated from the interactive database that I took screen shots of to create the slides, and it did not then occur to me that I would not be able to maintain the server.