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.

clear all ✕

why aren't all 1,256 resolved? a statement only gets an assessment when the public record can support or contradict it. opinions and what-ifs never can, and 42 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 Supported
Oracle Slashed Its Global Product Pricing Staff From 200 to Under 10
“We had about 200 people around the world involved in analyzing and reanalyzing, setting and resetting prices. It costs us a fortune in duplication of effort. We were competing against ourselves. It was embarrassing. Now we have less than 10 people working on p…”
David Senra Nov 4, 2025 ▶ 49:03 How Larry Ellison Thinks
Assertion Not checkable as stated
Ellison Avoids One-on-One Meetings to Ensure Shared Situational Awareness
“Ellison does not like doing one-on-ones with his direct reports. He prefers communicating as a group so everyone knows what's going on.”
David Senra Nov 4, 2025 ▶ 58:30 How Larry Ellison Thinks
Assertion Supported
Jensen Huang refused board recommendations to hire a COO
“Jensen had steadfastly refused to change his management philosophy, even when new board members joined and recommended that he hired a chief operating officer to reduce his administrative burden.”
David Senra Oct 19, 2025 ▶ 11:44 How Jensen Works
Assertion Not checkable as stated
Huang: Nvidia avoids periodic five-year plans in favor of continuous planning
“We don't do a periodic planning system. The reason for that is because the world is a living, breathing thing. We just plan continuously. There's no five-year plan.”
David Senra Oct 19, 2025 ▶ 35:11 How Jensen Works
Assertion Supported
Nvidia repurposed failed high-end chips to price low-end rivals into losses
“Nvidia could create a whole new derivative product line that could turn a profit without the expensive and time consuming process of research and development. That line would serve as defense against competitors for whom the low cost chip Was the main product.…”
David Senra Oct 19, 2025 ▶ 37:42 How Jensen Works
Assertion Supported
Peterffy hired female floor traders to bypass exchange specialists who ignored him
“He hired six tall, beautiful women to trade for him. The specialists who had ignored his bids suddenly fought to fill his new employees' trades.”
David Senra Oct 5, 2025 ▶ 17:15 The Billionaire Who Automates Everything: Thomas Peterffy
Assertion Supported
Peterffy built Wall Street's first fully automated trading system in 1987
“In 1987, Peterfi achieved what he had first dreamed of in 1971, so that's 16 years of trial and error. The first fully automated trading system in Wall Street history. His machines could now place trades without human intervention.”
David Senra Oct 5, 2025 ▶ 22:26 The Billionaire Who Automates Everything: Thomas Peterffy
Assertion Supported
Senra: Microsoft held 'Borland War Councils' and printed 'delete Philippe' T-shirts
“Gates held meetings that became known around Microsoft as the Borland War Councils, during which him and his staff plotted how to beat the Frenchman being Philippe Kahn. Gates reportedly walked into one such meeting and threw Kahn's picture down on a table and…”
David Senra Sep 24, 2025 ▶ 53:20 How Bill Gates Works
Assertion Supported
Luxottica Fills 80% of Its Acquired Retail Stores With Its Own Frames
“This formula means that when you and I walk into a LensCrafters, or a Sunglass Hut, or a David Clulow, or an Octacost Carol, which has 950 branches in Brazil, or a Zulang glasses in Shanghai, or a Ming Long store in Hong Kong, around 80% of the frames on displ…”
David Senra Jul 14, 2025 ▶ 8:30 This Orphan Built a $116 Billion Empire Without You Noticing
Assertion Not checkable as stated
Opticians Charge Consumers 700% to 800% Markups on Prescription Lenses
“While opticians might sell frames for two or three times their wholesale price, it is the lenses where they make the most money, charging markups of 700 or 800% to their customers.”
David Senra Jul 14, 2025 ▶ 12:31 This Orphan Built a $116 Billion Empire Without You Noticing
Assertion Partly supported
Michelin Exclusively Self-Funded Expansion and Kept Executive Management Strictly Familial
“It helped in keeping secrets that the firm made no appeal to outside sources of financing. Operations and expansion were financed out of profits. Managerial jobs stayed within the family.”
David Senra Jul 9, 2025 ▶ 46:54 The Greatest Marketer of All Time and The Cofounder of the Michelin Family Dynasty Andre Michel
Assertion Contradicted
Ferrero's workforce never went on strike in over 70 years
“And remarkably in over 70 years of operations, Ferraro's workforce never went on strike, which was unheard of at the time and in the location, which he's building his company, a virtually unheard of record in their industry.”
David Senra Jun 24, 2025 ▶ 12:37 Michele Ferrero's $40 Billion Privately Owned Chocolate Empire
Assertion Not checkable as stated
Dell's take-private became the most successful private equity deal in history.
“That is really funny to me because this winds up, this take private of Dell winds up being the most successful private equity deal of all time.”
David Senra Apr 22, 2025 ▶ 3:12 The Life Story of Michael Dell
Assertion Not checkable as stated
Dell adopted build-to-order due to capital constraints, not foresight
“We didn't start building to the customer's order because we saw some massive paradigm in the future. We started that way because we didn't have the capital to mass produce. It turned out to be a pretty lucky handicap.”
David Senra Apr 22, 2025 ▶ 52:35 The Life Story of Michael Dell
Assertion Not checkable as stated
Dell's private placement was the sole financing survivor on Black Monday.
“Out of literally hundreds of financings that were in the process that black Monday, ours was a sole survivor.”
David Senra Apr 22, 2025 ▶ 1:17:22 The Life Story of Michael Dell
Assertion Supported
Citadel is historically the most profitable hedge fund of all time
“So the wonderful history of Citadel is how we are the most profitable hedge fund of all time.”
David Senra Apr 22, 2025 ▶ 31:40 Ken Griffin: Founder of Citadel and Citadel Securities
Assertion Supported
Michael Ovitz returned Coke's $10M check and renegotiated a $31M payment
“He says, they sent me a check for ten million for the ads. I returned the check with a post-it note attached. Hey, let's discuss this. We did, and they wind up talking to the people at Coca-Cola. I was friendly but unrelenting, and they finally sent me a new c…”
David Senra Mar 21, 2025 ▶ 1:20:06 The Rise and Fall (and Rise) of the Most Powerful Man in Hollywood: Michael Ovitz
Assertion Partly supported
Jerry Jones Bought the Dallas Cowboys After 75 Rival Buyers Passed
“Jerry Jones, Dallas Cowboys. He paid one hundred and forty million for they're worth ten billion today. 75 people turned down the opportunity to buy the Cowboys before Jerry Jones did.”
David Senra Mar 14, 2025 ▶ 15:52 Dinner With Michael Ovitz
Assertion Not checkable as stated
Munger considered John D. Rockefeller the greatest entrepreneur ever
“When I went to Charlie Munger's house and got, got to have dinner with him, he actually said that he thought Rockefeller was the greatest entrepreneur of all time.”
David Senra Mar 8, 2025 ▶ 16:07 400 Pages of Warren Buffett and Charlie Munger In Their Own Words
Assertion Contradicted
Jerry Jones Came Up Empty on Only One of Over 200 Wells
“Jones and McCoy had drilled more than 200 wells, and they had come up empty on exactly one.”
David Senra Mar 3, 2025 ▶ 42:33 The Life Story of Jerry Jones: Owner of The Dallas Cowboys
Assertion Supported
Leon Hess personally paid foreign bribes without seeking corporate reimbursement
“He has to write a letter to shareholders because the regulations in the oil industry are changing. So I just want to read some excerpts from this letter to the shareholders. He goes in the hope of obtaining a benefit for our corporation. I made a series of pay…”
David Senra Feb 26, 2025 ▶ 34:33 The Last Oil Baron: Leon Hess
Assertion Partly supported
Wallenberg Jr. preferred violating German environmental laws over paying contract damages
“Mark Jr. Had been given a interview and he was asked, like, why did the Wallenberg start building this new pulp factory in Germany without yet having received permission from the authorities? And he had answered honestly, but imprudently that it was preferable…”
David Senra Feb 24, 2025 ▶ 55:46 The Wallenberg Family Dynasty
Assertion Supported
Jensen Huang: 'I'd Rather Torture People Into Greatness'
“Jensen has a great line in the book. He says, I don't like giving up on people. I'd rather torture them into greatness.”
David Senra Jan 14, 2025 ▶ 46:51 How Jensen Thinks
Assertion Supported
Nvidia's AI Pivot Originated From Employee Weekly Update Emails
“One of the weak signals that he intercepted years ago was a wonky, but exciting development in machine learning that kept popping up in T five T emails. Jensen decided that NVIDIA needed to invest more in tools for accelerating workloads on its GP use. This is…”
David Senra Jan 14, 2025 ▶ 57:58 How Jensen Thinks
Assertion Not checkable as stated
Jensen Huang Prioritizes Blunt, Concise Communication Over Feelings
“Jensen's communication style, blunt, concise, and direct. He says over and over again, he believes in direct, truthful, blunt communication. We're not worried about people's feelings. We're putting the work above everything else.”
David Senra Jan 14, 2025 ▶ 1:00:25 How Jensen Thinks
Assertion Not checkable as stated
Hetty Green was the world's largest individual financier during her lifetime
“You have to keep in mind, at a time when women weren't even allowed to vote, Hedy was the single biggest individual financier in the world.”
David Senra Jan 13, 2025 ▶ 4:44 The Richest Woman In America: Hetty Green
Assertion Supported
Jared Kushner invested in Brad Jacobs' latest company and joined its board
“My friend, Jared Kushner just invested in Brad's latest company and joined his board.”
David Senra Dec 19, 2024 ▶ 15:31 Breakfast with Brad Jacobs + How To Make A Few Billion Dollars
Assertion Contradicted
James J. Hill was the only American railroad builder to avoid bankruptcy
“James J. Hill was the only American Railroad entrepreneur in history to build a railroad and never go bankrupt.”
David Senra Nov 26, 2024 ▶ 11:44 James J. Hill: The Empire Builder
Assertion Contradicted
Blackstone Financed $32B Zell Buyout Across 16 Banks to Block Rivals
“The fact that they decided to finance their thirty two billion dollar offer with six Team banks at two billion dollars each instead of three banks at ten billion dollars each might have suggested. Perhaps They were thinking that if they could get 16 banks for …”
David Senra Oct 15, 2024 ▶ 34:25 Inside the Contrarian Mind of Sam Zell
Assertion Not checkable as stated
MrBeast Memo: Every Veteran Employee Has Made a $1M Mistake
“Every veteran here has cost me a million dollars at one point or another, and you can go ask them yourself if I ever held it over their heads.”
David Senra Oct 15, 2024 ▶ 25:19 Mr Beast's Leaked Memo
Assertion Not checkable as stated
MrBeast Can Grow a New Channel to 10K Subscribers in One Month
“Because I've spent almost a decade of my life hyper obsessing over YouTube, I can show a brand new creator how to go from a hundred subscribers to 10,000 in a month. On their own, it would take them years to do it.”
David Senra Oct 15, 2024 ▶ 27:14 Mr Beast's Leaked Memo
Assertion Not checkable as stated
MrBeast: 90 Seconds Extra Retention Yields 80 Million Extra Views
“If one is watched just a minute and a half longer on average, 90 seconds, 92nd difference at this scale gives you eighty million views.”
David Senra Oct 15, 2024 ▶ 35:21 Mr Beast's Leaked Memo
Assertion Not checkable as stated
Sleep Concentrated Capital Into Three Stocks, Holding 70% in One
“Sleep, with characteristic indifference to conventional opinion, invested almost all of his fortune in just three stocks. At times, he and Zack had as much as 70% of their money in a single stock.”
David Senra Sep 26, 2024 ▶ 2:39 Nick & Zak’s Excellent Adventure: How Nick Sleep & Qais Zakaria Built Their Partnership
Assertion Supported
Nick Sleep Sold Half His Amazon Stake at $1,500 in 2018
“By 2018, Amazon had risen so much that it accounted for more than 70% of Nick's net worth. Nick began to worry. Could Amazon's market value grow to three or four trillion dollars or were there limits even to Amazon's greatness? He wasn't sure. So after 13 year…”
David Senra Sep 26, 2024 ▶ 40:29 Nick & Zak’s Excellent Adventure: How Nick Sleep & Qais Zakaria Built Their Partnership
Assertion Supported
Getty refused a ransom demand to protect his 14 other grandchildren
“His whole point is, like, I got 15 other grandchildren. If I just keep immediately, you know, paying out money, I'm signaling to the world that if you want to make money, just kidnap one of my kids.”
David Senra Jul 9, 2024 ▶ 58:03 J. Paul Getty: The Richest Private Citizen in America
Assertion Supported
Rolex dominated the US market by expanding marketing during the 2008 crisis
“When the financial crisis happens in 2008, they pull back on their marketing. Rolex did not. Rolex put the pedal down, and it was really 2008, 2009, 2010, which really elevated Rolex in the United States to a level that it is today.”
David Senra Jul 8, 2024 ▶ 27:50 The Founder of Rolex: Hans Wilsdorf
Assertion Supported
Steve Jobs considered a free, ad-supported version of Mac OS
“And he's like, Hey, what if we gave it away for free? And we just did an ad supported version of Mac OS. And instead of buying them, you can get it for free, but you have to watch an ad every time before you use your computer.”
David Senra Jul 2, 2024 ▶ 22:42 How Steve Jobs Kept Things Simple
Assertion Partly supported
Ivar Kreuger Invented the Dual-Class Share Structure Still Used Today
“This guy literally invented the B-share, this dual class share system that is still used to this day.”
David Senra May 15, 2024 ▶ 41:59 The Financial Genius Behind A Century of Wall Street Scandals: Ivar Kreuger
Assertion Supported
Larry Ellison Commanded Recruiters to Hire the Cockiest College Graduates
“Ellison insisted that his recruiters hire only the finest and cockiest new college graduates. When they were recruiting from universities, they'd ask people, are you the smartest person you know? And if they said yes, they would hire them. If they said no, …”
David Senra May 2, 2024 ▶ 1:48:50 The Biography of George Lucas
Assertion Supported
Elon Musk Personally Interviewed First 3,000 SpaceX Hires
“He interviewed the first 3000 employees at SpaceX. That's how important it was.”
David Senra May 2, 2024 ▶ 1:57:32 The Biography of George Lucas
Assertion Not yet assessed · timeframe Apr 2024
Cornelius Vanderbilt committed his wife to an asylum for refusing to move
“She gets hysterical about the plan move from Staten Island to Manhattan, and so Vanderbilt puts her in a private mental asylum for three months until she changes her mind.”
David Senra Apr 28, 2024 ▶ 21:28 How Cornelius Vanderbilt Invaded a Country to Overthrow America's Most Famous Military Adventurer
Assertion Partly supported
Cornelius Vanderbilt hired mercenaries to assassinate William Walker over seized business assets
“He literally sends people to try to kill him. Hires multiple, multiple mercenaries. That is not hyperbolic. Like, that's exactly what he did.”
David Senra Apr 28, 2024 ▶ 21:47 How Cornelius Vanderbilt Invaded a Country to Overthrow America's Most Famous Military Adventurer
Assertion Supported
Cornelius Vanderbilt's personal wealth exceeded all Central American governments combined
“Vanderbilt had more money than all Central American governments combined.”
David Senra Apr 28, 2024 ▶ 40:11 How Cornelius Vanderbilt Invaded a Country to Overthrow America's Most Famous Military Adventurer
Assertion Supported
A competitor paid Cornelius Vanderbilt $40,000 monthly simply to not compete
“For two months, Aspen Wall had paid him 40,000 dollars a month on the condition that Vanderbilt not put his steamers on the Panama run in competition with Aspen Wall's own vessels. That money went to Vanderbilt personally, not to the transit company, even thou…”
David Senra Apr 28, 2024 ▶ 42:04 How Cornelius Vanderbilt Invaded a Country to Overthrow America's Most Famous Military Adventurer
Assertion Partly supported
Cornelius Vanderbilt personally financed and equipped a multinational military invasion of Nicaragua
“The invasion of Nicaragua by the other Central American government armies had been motivated, financed, and equipped by Vanderbilt.”
David Senra Apr 28, 2024 ▶ 43:20 How Cornelius Vanderbilt Invaded a Country to Overthrow America's Most Famous Military Adventurer
Assertion Supported
Michael Jordan used a butcher knife to destroy a friend's Puma gear
“He goes into the kitchen, gets a butcher knife, and literally cuts up everything. This was like his second or third year in the league. He literally took a butcher knife to my shoes, ripping and cutting. When he's all done, he picks up every little scrap and w…”
David Senra Apr 27, 2024 ▶ 1:03:09 Michael Jordan And Kobe Bryant
Assertion Supported
Hearst rejected a $50k room, then bought it from Duveen for $200k.
“A dealer offered a room to William Randolph Hearst for 50,000 dollars. Hearst spurned it. Duveen offered it to him later. Duveen offered it to Hearst later for 200,000 dollars, and Hearst bought it with gratitude.”
David Senra Apr 26, 2024 ▶ 49:11 The Robber Baron's Art Dealer: Joseph Duveen
Assertion Supported
Early Texas Oil Wildcatters Ran Armed Bunkers and Smuggled Crude
“They built concrete bunkers around wells and hired armed guards to defend their turf from government inspectors. They smuggled oil across state borders. They operated unregistered refineries in backwoods. They processed crude in excess of what each operator wa…”
David Senra Apr 25, 2024 ▶ 36:28 Texas Oil Billionaire Monty Moncrief
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