The Ledger

Every statement that passed quotation and attribution checks. Mix any filter with any other: certainty 1/5, debate potential 5/5, or both at once.

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why aren't all 4,336 resolved? a statement only gets an assessment when the public record can support or contradict it. opinions and what-ifs never can, and 0 checkable ones are still open, waiting for their date. predictions held up or didn't; assertions are supported or contradicted. on every card: ▮▮▮▮▮ certainty · ▮▮▮▮▮ debate potential. speakers are clickable

Assertion Partly supported
Topol: Mass screening detects only 14% of cancers despite massive costs
“We only pick up 14% of cancers from that mass screening, which costs over hundreds of billions of dollars a year.”
Dr. Eric Topol May 27, 2025 ▶ 18:46 7 More Healthy Years: What We Can Learn from Super Agers
Assertion Supported
Topol: Personalized vaccines are curing pancreatic and kidney cancers
“So vaccines now are capable Of cures of pancreatic cancer, kidney cancer, with these personalized vaccines using the proteins of the person's tumor.”
Dr. Eric Topol May 27, 2025 ▶ 6:53 7 More Healthy Years: What We Can Learn from Super Agers
Assertion Partly supported
Vance: One Chinese firm outproduced post-WWII US shipbuilding in 2024
“In fact, one of Beijing's state-owned firms built more commercial ships just last year than all of America has produced since the end of World War II.”
J.D. Vance Apr 23, 2025 ▶ 5:49 JD Vance on the Future of America
Assertion Supported
Vance: Migrant border crossings dropped 94 percent last month
“Last month, migrant crossings were down 94% to their lowest number all time, and that happened just in two months of serious Border enforcement.”
J.D. Vance Apr 23, 2025 ▶ 19:02 JD Vance on the Future of America
Assertion Contradicted
Ian Webster: Anthropic Claude censorship matches DeepSeek on Chinese political topics
“Sure. Yeah. So, I mean, the level of censorship here is like Anthropic Claude is actually on par with DeepSeq.”
Ian Webster Feb 28, 2025 ▶ 11:10 How to use DeepSeek safely
Assertion Supported
Schimpf: Wargames show key U.S. munition stockpiles run out in eight days
“You know, one of the areas where we see it is showing up with weapons, so when you look at these wargaming sort of scenarios, and you know, all these wargames are sort of questionable in their own ways but pretty consistently the stockpile of key U.S. Munition…”
Brian Schimpf Jan 28, 2025 ▶ 24:33 How AI Is Changing Warfare, with Anduril CEO Brian Schimpf
Assertion Supported
Sheriff McMahill: Legalizing marijuana has failed to eradicate the black market
“The legalization of marijuana has done nothing to eradicate the black market of marijuana.”
Sheriff Kevin McMahill Nov 18, 2024 ▶ 1:05:23 Las Vegas is Becoming the SAFEST City in America
Assertion Contradicted
Horowitz: Major tech and pharma CEOs couldn't get Biden administration meetings
“It's like every major, you talk to any major tech CEO of the biggest companies in the world of the, you know the biggest pharma companies in the world, none of them could get meetings with this administration.”
Ben Horowitz Nov 12, 2024 ▶ 54:09 Trump is About to Change Everything For Tech Startups
Assertion Supported
Andreessen: AI doomer Eliezer Yudkowsky advocates bombing data centers
“The AI version of that is, you know, Eliezer Yadkowsky's version of that is we must bomb data centers. Like, if there's a data center that we think might take off, like, if the training run starts to go too well, like, we need to send in the Air Force and be b…”
Marc Andreessen Nov 5, 2024 ▶ 14:49 Marc & Ben on AI Policy, Safety, Censorship & Unexpected Risks
Assertion Contradicted
Andreessen: For every active US dockworker, another is paid to stay home
“For every doc worker in the U S actually works on the doc doc, there's actually somebody sitting, there's a doc worker sitting at home doing nothing, still getting paid.”
Marc Andreessen Oct 29, 2024 ▶ 31:24 AI, Robotics & the New Global Arms Race
Prediction Held up
Dolgov: Waymo will continue using LiDAR, radar, and cameras together
“So yeah, I think the trend, you know, for us that we'll, you know, using all three modalities just, you know, makes a lot of sense.”
Dmitry Dolgov Aug 5, 2024 ▶ 29:46 How Waymo Is Using GenAI to Build a Better Driver
Assertion Supported
Horowitz: Biden administration sued to block a16z portfolio's Sanofi drug deal
“We have a company with an incredible drug platform. They cured. A rare disease, like past phase one clinical trials, carried it, sell the drug to Sanofi because, you know, so they can get some of the money back to develop more things, and the Biden administrat…”
Ben Horowitz Jul 16, 2024 ▶ 59:34 Trump Vs. Biden: Tech Policy
Assertion Partly supported
Andreessen: California high-speed rail spent $10B with zero ground broken
“The California high-speed rail project. Which is now ten billion, it's over ten billion in spend with zero ground broken.”
Marc Andreessen Jun 19, 2024 ▶ 13:15 Marc Andreessen & Andrew Chen Talk Creative Computers
Assertion Contradicted
Andreessen: FDIC blocked private equity and bank bids to buy SVB
“There were both there were other big banks that wanted to buy SVB, and there were private equity firms that wanted to buy SVB, and basically do a private sector bailout requiring no, no taxpayer involvement, and the FDIC actually blocked those also.”
Marc Andreessen May 2, 2024 ▶ 1:16:44 Startup Building: Challenges & Opportunities
Assertion Contradicted
Horowitz: FDIC rejected SVB buyer to avoid creating another G-SIB bank
“One of the blocks was there was a bank that was going to buy Silicon Valley bank and by buying Silicon Valley bank, it would move up into the G-SIB category, which is globally systemic important banks. And they're like, no more G-SIBs.”
Ben Horowitz May 2, 2024 ▶ 1:17:04 Startup Building: Challenges & Opportunities
Assertion Contradicted
Horowitz: Car thieves are not prosecuted in almost any blue state
“One of the big things that's changed in talking to many police officers is like grand theft auto is no longer a thing. Like if you steal a car, you don't get prosecuted in almost any state. Certainly in any blue state, you're not getting prosecuted for stealin…”
Ben Horowitz Apr 24, 2024 ▶ 25:36 Startup Building: Major Shifts in Tech & Culture
Assertion Supported
Casado: AI startups are the fastest-growing companies in internet history
“We're seeing the fastest growing companies we've seen in the history of the internet, including, by the way, the internet itself. And this is by measure for revenue or the number of users, et cetera, right?”
Martin Casado Mar 5, 2024 ▶ 6:50 The Future of AI Is Amazing
Prediction Partly held up
Hicks: DoD aims to field thousands of autonomous systems within 24 months
“Replicator's goal has always been simple and straightforward, to field thousands of attributable autonomous systems in multiple domains within 18 to 24 months, and to prove ways to burn down risk and rapidly and safely overcome barriers to scaling.”
Kathleen Hicks Mar 5, 2024 ▶ 14:18 Collaborative Disruption at DoD
Assertion Supported
Cuban: PBMs exclude $700 biosimilar Usimri to protect drug margin revenues
“Humira is about 8000 dollars a month. Six to 8000 dollars a month. USIMRI is about 700 dollars a month. But they won't add USIMRI to their formularies because they don't want to use the revenue in the margin.”
Mark Cuban Mar 5, 2024 ▶ 10:33 Sharks Never Stop Swimming: A Conversation with Mark Cuban
Assertion Supported
Cuban: Big three PBMs pay independent pharmacies $0.50 for $12 scripts
“If you're dealing with one of those big three PBMs, it cost an independent pharmacy probably 12 dollars, give or take, on the location to fill a script. They're paying them 50 cents”
Mark Cuban Mar 5, 2024 ▶ 16:07 Sharks Never Stop Swimming: A Conversation with Mark Cuban
Assertion Supported
Horowitz: Biden administration uses extra-legal regulatory pressure to choke crypto companies
“We're seeing you know, this administration do the same thing. In something called choke .2, but this time with crypto companies and, you know, there's no law that they're following. There's no rule. There's no legislation. There's no vote. There's no nothing. …”
Ben Horowitz Feb 28, 2024 ▶ 54:55 Future of Crypto, Blockchain & Web3 w/ Chris Dixon
Assertion Contradicted
Horowitz: Harvard enrolls more Nigerian than African American students
“There are more Nigerians. I believe there's more Nigerians at Harvard than African Americans.”
Ben Horowitz Jan 23, 2024 ▶ 41:11 Fixing Higher Education & New Startup Opportunities
Assertion Supported
Horowitz: Higher Share of Women Enter STEM in Kazakhstan Than Sweden
“Way more women go into STEM in like Kazakhstan than in Sweden.”
Ben Horowitz Jan 23, 2024 ▶ 52:28 Fixing Higher Education & New Startup Opportunities
Assertion Supported
Andreessen: American university faculty is radically politically polarized toward liberals
“It's an empirical observation that the faculty at American universities is now radically polarized on in, in one political direction. Radically, and we could also post a graph on this maybe, which is the numbers are like really radical. There's fields in which…”
Marc Andreessen Jan 13, 2024 ▶ 1:04:14 Crisis in Higher Ed & Why Universities Still Matter
Assertion Supported
Mensch: Mixtral matches Llama 2 70B performance at one-sixth the cost
“Mixtral is actually on par with Lama-to-seven TB while being approximately six times cheaper or six times faster for the same price.”
Arthur Mensch Dec 28, 2023 ▶ 11:38 Safety in Numbers: Keeping AI Open
Assertion Contradicted
Robbins: Meta-studies show 60% of depression patients receive zero treatment benefit
“60% of the people that go in, according to meta studies, for treatment of depression with drugs and or therapy or both, 60% make zero improvement.”
Tony Robbins Dec 20, 2023 ▶ 20:29 Tony Robbins on the Future of Health & Longevity
Assertion Partly supported
Horowitz: Native American reservation system acts as an ineffective $65,000 UBI
“We have UBI for Native Americans. It's called the reservation system, and it's horrible. And, you know, it's 65,000 dollars a year a piece, and it does not do anything.”
Ben Horowitz Dec 20, 2023 ▶ 1:16:38 Tony Robbins on the Future of Health & Longevity
Assertion Contradicted
Andreessen: More People Globally Have Smartphones Than Electricity or Running Water
“Sitting here today in 2023, the following is true. More people in the world have computers in the form of smartphones specifically and internet access than have electricity or running water in their homes.”
Marc Andreessen Oct 21, 2023 ▶ 17:37 Why It's Time to Be A Techno-Optimist
Assertion Contradicted
Horowitz: Native American reservation system is essentially UBI paying $65K yearly
“And the reservation system is essentially UBI. It's 65,000 dollars a year, I believe, per resident.”
Ben Horowitz Oct 21, 2023 ▶ 1:00:34 Why It's Time to Be A Techno-Optimist
Assertion Contradicted
Horowitz: Vinod Khosla tweeted that AI will replace human musicians
“Our friend Vinod Khosla, I think, had a tweet that got him in a lot of trouble where he said, like, you know, there won't be any more human musicians because the AI would just program whatever feeling, however you want to feel, they just program it for you.”
Ben Horowitz Oct 1, 2023 ▶ 50:22 What is the Future of Hollywood?
Prediction Didn’t hold up
Amodei: AI training costs will hit $1B in 2024 and up to $10B in 2025
“I think that next year we're probably going to see from multiple players models on the order of one billion dollars, and in 2025 we're going to see models on the order of Several billion, I don't know, perhaps even ten billion dollars.”
Dario Amodei Sep 25, 2023 ▶ 7:02 Improving AI with Anthropic's Dario Amodei
Assertion Partly supported
Andreessen: Albert Einstein held pro-Soviet and pro-Stalinist views
“Einstein, unfortunately, and I know Einstein's, a lot of people consider Einstein to be a hero, not just scientifically, but morally, and the movie paints him as a, both a scientific and a moral hero, which is kind of the received wisdom. A little bit of an is…”
Marc Andreessen Aug 2, 2023 ▶ 12:20 Oppenheimer & the Catastrophe of Communism
Assertion Partly supported
Weiss: NYT profile of Sam Bankman-Fried omitted political donations and fraud comparisons
“You have this 2000 word profile in the New York Times that doesn't mention the four hundred million dollars that he donated to Democratic candidates, that doesn't mention, you know, Madoff, Enron, like the kind of things that he's being compared to.”
Bari Weiss Feb 6, 2023 ▶ 8:05 The 4th Estate: How Media is Changing in Washington, D.C.
Assertion Partly supported
Andreessen: Tesla deploys live autonomous software without federal testing, improving safety
“Tesla has been climbing the ladder on self-driving car functionality capability. They do new software releases, push live to car at night anytime they want. Those new releases are not being tested by any federal, the federal, you know, it's a, whatever it's no…”
Marc Andreessen Jan 9, 2023 ▶ 41:50 Expert AI as a Healthcare Superpower
Assertion Partly supported
Ukraine depleted three years of US missile inventory in three weeks
“We shipped the Ukrainians what we thought was three years of inventory of stinger and javelin missiles, which are shoulder mounted, really cheap missiles that can take out a tank or something. So for providing that to a human force in Taiwan or the Ukraine, it…”
Chris Power Nov 18, 2022 ▶ 4:05 The Factory of the Future with Chris Power
Assertion Partly supported
Balaji Srinivasan: Euthanasia is Canada's sixth leading cause of death
“In fact, it's like the sixth leading cause of death and candid, like you can kill yourself, but you can't take an experimental drug.”
Balaji Srinivasan Nov 16, 2022 ▶ 1:10:43 The Network State with Balaji Srinivasan
Assertion Contradicted
Gluchowski: Optimistic rollups cannot support Validium extensions due to game theory reliance
“There's another Type of roll-ups called optimistic roll-ups. They unfortunately cannot do this. They do not rely on math and cryptography. They rely on game theory and validators, and they cannot have this extension.”
Alex Gluchowski Nov 8, 2021 ▶ 27:44 Scaling Up Blockchains with Zero-Knowledge Proofs
Assertion Supported
Levine: No Open-Source Company Has Been Fully Displaced by Cloud Providers
“Can you name a single example of a company that's been fully displaced by a cloud provider? And the answer is no. And so I think that our concerns around large cloud vendors coming in and just co-opting an open source project and putting you out of business, t…”
Peter Levine Oct 21, 2019 ▶ 8:52 How to Build an Open Source Business
Assertion Supported
Dapper Dan: Sonia Sotomayor represented Fendi during a raid on his store
“Sotomayor. Anybody know who she is? Sotomayor. She's a Supreme Court Justice. At this time, she's working for Fendi, as one of the lawyers for Fendi's. She comes in the store with the team.”
Dapper Dan Sep 2, 2019 ▶ 55:53 Making Culture, Making Influence -- Dapper Dan in Silicon Valley
Assertion Partly supported
Church: Chinese government likely knew about CRISPR baby experiment
“I wouldn't characterize it as a solo effort. I've seen the author list. It's quite long, and I also find it unlikely that a government as technically astute and as engaged in observation would be unaware of such an important thing.”
George Church Apr 1, 2019 ▶ 1:30 a16z Podcast | What's in the Water at the George Church Lab?
Assertion Supported
Cal Turner Jr. fired his brother as COO to avoid bankruptcy
“The hardest and toughest decision I ever had to make was the decision to fire my brother. Who was the chief operating officer, and the company was really in trouble. We were on the verge of chapter 11, and when you're in that situation, and the CEO and the COO…”
Cal Turner, Jr. Jan 2, 2019 ▶ 14:06 a16z Podcast | The Case Study of Dollar General and Surviving (Thriving!) Retail
Assertion Partly supported
ICIJ uncovered $20 billion in offshore wealth linked to Vladimir Putin's associate
“Yeah, arguably the biggest story that came out of the Panama Papers was that we found about twenty billion dollars that was being funneled through offshore companies, That was linked to a guy in Russia who was the godfather of Vladimir Putin's child. And here …”
Jared Ryle Jan 2, 2019 ▶ 8:14 a16z Podcast | When Journalism Goes Global
Assertion Partly supported
Caplan: Teaching students "how to learn" is mostly wishful thinking
“In the book I review what educational psychologists have determined about this, and the main result is that most of this learning how to learn or learning how to think stuff is wishful thinking. Most of the time when someone learns a subject, the most that the…”
Bryan Caplan Jan 2, 2019 ▶ 6:57 a16z Podcast | The Case Against Education, From Signaling to Rainbow's End
Assertion Supported
Caplan: Standard credentials and seniority do not predict actual teacher effectiveness
“The main thing known is none of, like, the obvious social science measures of teacher quality predict teacher quality. So, having credentials from better schools, or having more credentials, or even more experience, none of the standard things that are in the …”
Bryan Caplan Jan 2, 2019 ▶ 26:23 a16z Podcast | The Case Against Education, From Signaling to Rainbow's End
Assertion Contradicted
Benet: Academic research proved doubling Bitcoin block size has minimal impact
“The debates that have been raging for the last two years are about relatively minor things, so increasing the block size became this huge holy war, and when you step back and look at what they're talking about, it's just increasing one factor, either by, you k…”
Juan Benet Jan 2, 2019 ▶ 15:19 a16z Podcast | Trends in Cryptocurrencies
Assertion Supported
Sutton: Emotional intelligence is only 10% as important as IQ
“EQ is one of the most overrated concepts on the planet. It's there, it matters, but if you look at the evidence, it's about, a good guess, 10% as important as old-fashioned IQ.”
Bob Sutton Jan 2, 2019 ▶ 14:26 a16z Podcast | The Asshole Survival Guide
Assertion Partly supported
Levinson: Reagan and Thatcher's free-market policies failed to boost productivity
“This was what was behind the political swing to the right in the late 19 seventies, early 19 eighties, when we got Margaret Thatcher and Ronald Reagan, because the more social democratic type of governments before that hadn't been able to restart productivity …”
Mark Levinson Jan 2, 2019 ▶ 1:57 a16z Podcast | The Golden Era of Productivity, Retail, and Supply Chains
Assertion Supported
Osnos: Trump hired actors for his 2016 campaign announcement crowd
“He hired actors to flesh out the crowd at his announcement speech. He really did, meaning he didn't think that people were actually even going to come to his announcement”
Evan Osnos Jan 2, 2019 ▶ 38:35 a16z Podcast | Politics Over Pragmatism -- On China, Trump, and Smart Guns?
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