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Paul Krugman

Distinguished Professor of Economics, CUNY Graduate Center · 1 appearance on the record.

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academicauthorjournalistanalyst@paulkrugman ↗web.mit.edu/krugman/www ↗Wikipedia ↗YouTube ↗

Paul Krugman won the 2008 Nobel Memorial Prize in Economic Sciences for his work on New Trade Theory and New Economic Geography. He served as an op-ed columnist for The New York Times from 2000 to 2024 and authored books including The Return of Depression Economics.

41statements → 22claims → 5claims resolved → 60%fully supported → 3.76/5average certainty → 2.88/5average debate potential → 15said about them ↓

3 supported 0 partly supported 2 contradicted 12 not checkable as stated how the 22 claims stand · each chip opens the sources

9 predictions · 13 assertions · 12 opinions · 7 insights · every statement was checked. The predictions and assertions are the 22 claims: statements the public record can support or contradict. 10 are resolved, and 12 name no date, number or outcome precise enough to check. Everything else (opinions, insights, what ifs, disclosures) can never be settled by the record, so it carries no assessment.

The record, in short

What the tape says about how Paul argues and how the claims held up. Everything they said, and everything said about them, is in the tabs below.

Their most notable supported claim

Prediction Held up
Paul Krugman predicts blockchain will not undermine Amazon or tech incumbents
“I don't believe that blockchain is going to undermine Amazon or any of these people, because The reason I use Amazon is not because of power, or the, not the power of Amazon, but the power of laziness.”
Paul Krugman Nov 2, 2018 ▶ 24:12 Debating Crypto: Katie Haun vs. Paul Krugman

Their most notable contradicted claim

Prediction Didn’t hold up
Paul Krugman predicts only one or two cryptocurrencies will survive
“There will not be 1600 cryptocurrencies out there. There will be one or two.”
Paul Krugman Nov 2, 2018 ▶ 24:06 Debating Crypto: Katie Haun vs. Paul Krugman

Expressed certainty vs assessment result

none yet certainty 1
none yet certainty 2
50% certainty 3
79% certainty 4
0% certainty 5

weighted support: a fully supported claim counts one, a partly supported claim counts half. Each filled bar is clickable and opens exactly those claims; "none yet" means nothing said at that certainty level has resolved yet

How they sound: speaking style how? →

246 words/min while actually speaking · 47.2 um and uh per 1k words

No argument clarity score for Paul Krugman: no usable question→answer exchanges on raw tape (a fair score needs 8+). We do not score a sample that small. Roundtable and news formats yield far fewer direct exchanges than interviews.

Measured by listening to the audio itself: 6,457 words across 2 episodes of raw-level tape, transcribed verbatim with every um and uh kept, each one attributed only where the alignment onto our timed stream is unambiguous. These are measurements of speaking style. We do not rank them: across this corpus, fluency and argument quality are nearly uncorrelated (ρ≈0.2), and smooth talking does not signal clear thinking. How it's measured →

Everything Paul Krugman said on the a16z Podcast that made the record, most notable first. Filter by type, assessment or year in the ledger →

Prediction Not checkable as stated
Paul Krugman predicts most crypto projects will look like Pets.com by 2033
“My guess is, however, that I think I don't actually believe that we're at the dawn of a new age. I actually believe that we're at the that that most of this 10 years back, 15 years, 15 years from now, it will look a lot like Pets.com.”
Paul Krugman Nov 2, 2018 ▶ 31:02 Debating Crypto: Katie Haun vs. Paul Krugman
Prediction Not checkable as stated
Krugman: Significant probability Bitcoin's value eventually drops to zero
“Now, I'm not a hundred percent sure of that, but maybe, ah, ah, but I think that there's a certainly a, I would say a quite significant probability that the whole thing just drops to zero, ah, because I have not yet seen any reason why this has to be a valuabl…”
Paul Krugman Nov 2, 2018 ▶ 23:40 A Skeptic's View of Crypto (from the Point of View of Monetary Economics)
Opinion
Paul Krugman says crypto offers no unique utility over traditional methods
“It's not at all clear even now that there's anything that you can do with crypto that you can't do other ways. But, you know, obviously if something comes along that I, I'm happy to see it, but I don't see it now.”
Paul Krugman Nov 2, 2018 ▶ 2:41 Debating Crypto: Katie Haun vs. Paul Krugman
Opinion
Paul Krugman argues Bitcoin mining energy efficiency gains are self-defeating
“Bitcoin is what people are owning now in large value, and any gains in energy efficiency just gets swallowed up very quickly. You just push further into that margin, and it, ah, it, it's, ah, it's a self-defeating form of progress.”
Paul Krugman Nov 2, 2018 ▶ 6:36 Debating Crypto: Katie Haun vs. Paul Krugman
Prediction Didn’t hold up
Paul Krugman predicts only one or two cryptocurrencies will survive
“There will not be 1600 cryptocurrencies out there. There will be one or two.”
Paul Krugman Nov 2, 2018 ▶ 24:06 Debating Crypto: Katie Haun vs. Paul Krugman
Opinion
Krugman: Crypto uses advanced tech to regress monetary history 300 years
“From the point of view of monetary economists, we're exploiting cutting edge, ah, computer science, ah, to set the clock back 300 years.”
Paul Krugman Nov 2, 2018 ▶ 7:30 A Skeptic's View of Crypto (from the Point of View of Monetary Economics)
Opinion
Krugman: Crypto replaces institutional trust with digital gold-biting
“So, the interesting thing about all of this shift to cryptocurrency is it's saying, let's throw away This technology, it's more, it's a social technology rather than a, you know, a mathematical technology, but let's throw away the social technology of repeated…”
Paul Krugman Nov 2, 2018 ▶ 11:15 A Skeptic's View of Crypto (from the Point of View of Monetary Economics)
Prediction Not checkable as stated
Krugman: Governments will quickly strip away crypto freedom if Bitcoin becomes serious
“And if Bitcoin became really a serious, well, ok, it you'd be amazed at how quickly whatever freedom you think you're getting via the blockchain would disappear.”
Paul Krugman Nov 2, 2018 ▶ 15:30 A Skeptic's View of Crypto (from the Point of View of Monetary Economics)
Prediction Not checkable as stated
Krugman: Bitcoin mining costs will always expand to extreme levels
“Bitcoin circulation will always expand to drive the cost of producing a Bitcoin up to the point of being insane.”
Paul Krugman Nov 2, 2018 ▶ 16:58 A Skeptic's View of Crypto (from the Point of View of Monetary Economics)
Assertion Not checkable as stated
Krugman: Cryptocurrency shows no sign of becoming real money
“The one thing I will say is so far cryptocurrency shows no sign whatsoever Of becoming currency. Whatever it's doing, it's not money.”
Paul Krugman Nov 2, 2018 ▶ 25:12 A Skeptic's View of Crypto (from the Point of View of Monetary Economics)
Prediction Held up
Paul Krugman predicts blockchain will not undermine Amazon or tech incumbents
“I don't believe that blockchain is going to undermine Amazon or any of these people, because The reason I use Amazon is not because of power, or the, not the power of Amazon, but the power of laziness.”
Paul Krugman Nov 2, 2018 ▶ 24:12 Debating Crypto: Katie Haun vs. Paul Krugman
Opinion
Paul Krugman says uninformed retail investors are getting ripped off in crypto
“My barber actually did ask me if he should put all of his money in Bitcoin. So this is not, this stuff is not hypothetical, it's for real, and there's a lot of, Uninformed people getting ripped off.”
Paul Krugman Nov 2, 2018 ▶ 27:45 Debating Crypto: Katie Haun vs. Paul Krugman
Assertion Contradicted
Krugman: Only South Sudan and Venezuela have inflation over 50%
“So let me give you a comprehensive list of the countries that currently have inflation exceeding 50% a year. South Sudan and Venezuela. End of story.”
Paul Krugman Nov 2, 2018 ▶ 9:14 A Skeptic's View of Crypto (from the Point of View of Monetary Economics)
Insight
Krugman: Severe monetary crises are political issues technology cannot fix
“Cryptocurrency is not going to put food in the stores when there's no food in the stores, right? It's not, it's a, it's not fund, Venezuela's problem is not fundamentally a monetary problem, and most really severe monetary problems are not. Most really severe …”
Paul Krugman Nov 2, 2018 ▶ 12:51 A Skeptic's View of Crypto (from the Point of View of Monetary Economics)
Opinion
Krugman: Best bull case for Bitcoin is acting like cash hoards
“The best argument I could possibly be persuaded for on, on the question of Bitcoin Is that Bitcoin will become like gold or high denomination notes. It'll be something that people hold in their stashes in, in in Buenos Aires, or actually high denomination euro…”
Paul Krugman Nov 2, 2018 ▶ 20:51 A Skeptic's View of Crypto (from the Point of View of Monetary Economics)
Insight
Krugman: Gold and cash are backstopped by real-world utility
“What I would say, however, is that both gold and hundred dollar bills have a, now, first time I said this, I said they, they're, they are tethered to reality. And then it turned out that that was a bad word to use when talking about, to crypto people. So, so t…”
Paul Krugman Nov 2, 2018 ▶ 21:31 A Skeptic's View of Crypto (from the Point of View of Monetary Economics)
Opinion
Paul Krugman sees no sign Bitcoin is becoming a widespread payment method
“There's very little sign that it is becoming any kind of widespread means of payment, and that's 10 years on.”
Paul Krugman Nov 2, 2018 ▶ 4:51 Debating Crypto: Katie Haun vs. Paul Krugman
Assertion Not checkable as stated
Paul Krugman says Secret Service enforcement prevents high-quality currency counterfeiting
“Mostly the main obstacle to people producing high quality counterfeit, ah, dollar bills is the fact that the Treasury Department, the Secret Service will track you down”
Paul Krugman Nov 2, 2018 ▶ 7:45 Debating Crypto: Katie Haun vs. Paul Krugman
Opinion
Paul Krugman says crypto will struggle to surpass traditional institutional trust
“We developed this, you know, socially ingenious thing, which is enduring institutions that have a reputational stake in, ah, in safeguarding the value of the, ah, of the tokens they create, and, we're throwing all of that out, and it's gonna be really, really …”
Paul Krugman Nov 2, 2018 ▶ 10:37 Debating Crypto: Katie Haun vs. Paul Krugman
Opinion
Paul Krugman argues government interest in blockchain is driven by trendiness
“Government officials are as, ah, ah, you know, they read the same magazines, they, ah, no one reads magazines. They read the same social media as everyone else, and, ah, and want to be trendy. And, ah, you know, the trendiness is a very big factor in all of th…”
Paul Krugman Nov 2, 2018 ▶ 12:28 Debating Crypto: Katie Haun vs. Paul Krugman
Opinion
Paul Krugman says 2000s financial innovation was mostly regulatory arbitrage
“The high tide of financial innovation in, in, in other respects, non-crypto financial innovation, was in a period roughly, you know, 2000 to 2007, and the great bulk of that innovation was essentially just doing an end run around regulations.”
Paul Krugman Nov 2, 2018 ▶ 19:52 Debating Crypto: Katie Haun vs. Paul Krugman
Opinion
Paul Krugman calls Katie Haun's defense of crypto the best he's heard
“And this was the best, far and away the best defense of crypto that I've heard.”
Paul Krugman Nov 2, 2018 ▶ 38:56 Debating Crypto: Katie Haun vs. Paul Krugman
Insight
Krugman: Fiat currency value is backstopped by taxes and state force
“What keeps most currencies valuable is the belief that, well, two things. The belief that governments will exercise restraint in issuing currency, ah, and the fact that legally you can pay taxes. So if you like, the thing, whole thing is backstopped by, ah, by…”
Paul Krugman Nov 2, 2018 ▶ 4:38 A Skeptic's View of Crypto (from the Point of View of Monetary Economics)
Assertion Partly supported
Krugman: Bitcoin transactions are expensive and difficult to execute
“And it is in fact expensive to make transactions. It's, ah, the, ah, the actual implementation of the blockchain is, ah, ah, is one that is hard. It's hard to do transactions in Bitcoin.”
Paul Krugman Nov 2, 2018 ▶ 7:04 A Skeptic's View of Crypto (from the Point of View of Monetary Economics)

Show 17statements(17 left)

The other half of the tape: Paul Krugman's own voice is left out of every number here. Other people bring the name up 13 times in 7 episodes on the a16z Podcast. 2 statements on the record name them. every mention, with the transcript →

Who brings them up most Noah Smith 4Marc Andreessen 3Sonal Chokshi 2Ben Horowitz 2Chris Dixon 1Balaji Srinivasan 1

Statements about Paul Krugman, by other people (2)

Opinion
Dixon: Paul Krugman makes basic mistakes and hasn't read the whitepaper
“You read, like, Paul Krugman or something, and they just, he makes very basic mistakes about Bitcoin, and clearly has not read the paper, and so it's hard to take those seriously”
Chris Dixon Jan 2, 2019 ▶ 27:35 a16z Podcast | Beyond Bitcoin -- The Blockchain
Opinion
Andreessen: Krugman's failed internet prediction shows human transfer learning limits
“This is the Paul Gruckman talking about how the internet's gonna be no more significant than the fax machine. Facts, yeah. He's a brilliant economist, he has no idea how a computer works.”
Marc Andreessen Oct 23, 2025 ▶ 37:25 Marc Andreessen & Amjad Masad on “Good Enough” AI, AGI, and the End of Coding

Every mention by year

tap a year for its mentions
0042832019202020212022202320242025episodesmentions
0232019202020212022202320242025episodes it came up in
0021.5432019202020212022202320242025episodesmentions per episode
2025 7 mentions in 2 episodes 4 per episode
2024 2 mentions in 1 episode
2022 1 mention in 1 episode
2019 3 mentions in 3 episodes 1 per episode

Appearances (1)

EpisodeDateSpeaking time
Debating Crypto: Katie Haun vs. Paul Krugman Nov 2, 2018 11m

Played on the show (2)

Episodes where a recording of Paul Krugman was played rather than Paul taking part, or where the tape carries an address with nobody putting questions to them. Listed because the words are on the record, kept out of every score on this page because they were not said on this show. We read this off the tape: who was spoken to, who was asked something, who answered whom.

EpisodeDateOn tapeWhat it is
A Skeptic's View of Crypto (from the Point of View of Monetary Economics) Nov 2, 2018 22m aired address
3 Common Myths People Have About Crypto Nov 2, 2018 17s clip played
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