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 1,245 resolved? a statement only gets an assessment when the public record can support or contradict it. opinions and what-ifs never can, and 39 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
Joseph Pulitzer crowdfunded the Statue of Liberty pedestal from 120,000 donors
“Over a 120,000 people donate. And in less than five months, Pulitzer raises all the money required.”
David Senra Jun 20, 2026 ▶ 44:37 Joseph Pulitzer: The Inventor of Mass Media
Assertion Supported
Apple reduced hardware development cycles from three years to nine months
“We reduced product development from three years to nine months. We made Apple one of the fastest companies in tech”
David Senra Jun 10, 2026 ▶ 38:34 The Simple Genius of Jony Ive
Assertion Supported
George Lucas Threatened to Fire Pixar Team Over $35 Million Divorce
“George was cash strapped from a thirty-five million divorce settlement and was threatening to fire the division's entire team if no buyer emerged.”
David Senra Jun 4, 2026 ▶ 5:43 Steve Jobs in Exile
Assertion Partly supported
Steve Jobs Fired NeXT Manufacturing VP to Cover His Own Indecision
“When Nexus factory schedule, inevitably slipped rather than blaming his own indecision. Steve took out his frustration on Linda, and he fired her, and the entire company gets stuck in this loop for months and years.”
David Senra Jun 4, 2026 ▶ 19:15 Steve Jobs in Exile
Assertion Supported
Steve Jobs Learned Never to Overplay His Hand From IBM Deal
“Years later, he confided in Pixar co-founder Ed Catmull That he had learned a lesson from the collapse of the IBM deal. Never overplay your hand.”
David Senra Jun 4, 2026 ▶ 33:55 Steve Jobs in Exile
Assertion Partly supported
Jobs Threatened to Shut NeXT Unless Canon Bought Hardware Division
“And by this time, they'd already poured a hundred and forty million dollars into the company. And Steve says, if you don't deposit another check for twenty million dollars by Monday, I'm going to shut the doors. In exchange for the twenty million dollars, Cano…”
David Senra Jun 4, 2026 ▶ 40:29 Steve Jobs in Exile
Assertion Not checkable as stated
Bowerman was the first U.S. college coach to emphasize rest and recovery
“For example, he was the first college coach in America to emphasize rest, to place as much value on recovery as on work.”
David Senra May 7, 2026 ▶ 17:46 Phil Knight: Founder of Nike
Assertion Contradicted
Bowerman coached more sub-four-minute milers than any other coach
“Bowerman coached more sub four minute milers than anybody ever.”
David Senra May 7, 2026 ▶ 17:57 Phil Knight: Founder of Nike
Assertion Supported
Phil Knight hitched free military flights in uniform to sell shoes
“So every other weekend I'd load a duffel bag with tigers. This is the shoe, the brand of shoe that he's selling. Put on my army uniform and head out to the local airbase. Seeing the uniform, the MPs would wave me onto the next military transport To San Francis…”
David Senra May 7, 2026 ▶ 21:32 Phil Knight: Founder of Nike
Assertion Not checkable as stated
In 1965, running for exercise was virtually unheard of in America
“In fact, in 1965, running wasn't even a sport. To go out for a three-mile run was something weirdos did, presumably to burn off manic energy. Running for pleasure, running for exercise, running for endorphins, running to live better and longer, these things we…”
David Senra May 7, 2026 ▶ 24:45 Phil Knight: Founder of Nike
Assertion Supported
An early $8,000 loan to Nike yielded $1.6 million at IPO
“Now, what is remarkable about that is, I think, six years later, when Nike IPOs, Phil Knight converted that loan to stock, and that 8000 dollars was worth 1.6 Million.”
David Senra May 7, 2026 ▶ 41:42 Phil Knight: Founder of Nike
Assertion Partly supported
DeepMind used 32 algorithms to predict nearly all protein structures
“In 2020, DeepMind solved a second grand challenge in biochemistry, stitching together 32 algorithms to define the shape of nearly all the proteins in nature.”
David Senra Apr 1, 2026 ▶ 4:29 The Relentless Missionary Creating AGI: Demis Hassabis
Assertion Supported
Hassabis and Jumper won the 2024 Nobel Prize in Chemistry
“So in 2024, Demis and John Jumper were awarded the Nobel Prize in chemistry for protein structure prediction.”
David Senra Apr 1, 2026 ▶ 4:43 The Relentless Missionary Creating AGI: Demis Hassabis
Assertion Supported
Peter Molyneux Offered Teenage Demis Hassabis £500k to Skip Cambridge
“The founder did everything possible to persuade him not to go. He writes out a check for 500,000 pounds to get him to work on Bullfrog's next game. Keep in mind this is a poor 17 or 18 year old at the time. He does not have money. That amount of money would be…”
David Senra Apr 1, 2026 ▶ 18:41 The Relentless Missionary Creating AGI: Demis Hassabis
Assertion Supported
Bill Gates Claimed True AI Would Be Worth Ten Microsofts
“If you invent a breakthrough in artificial intelligence so machines can learn, that would be worth 10 Microsofts.”
David Senra Apr 1, 2026 ▶ 26:35 The Relentless Missionary Creating AGI: Demis Hassabis
Assertion Supported
Investor Required DeepMind Founders to Pitch His Teenage Sons
“In September, 2010, Demis and Mustafa appeared before a strange kind of investment committee. David Gammon declared himself ready to commit capital, but he'd only go forward if DeepMind did things his way. Entrepreneurs seeking his support were required to vis…”
David Senra Apr 1, 2026 ▶ 28:11 The Relentless Missionary Creating AGI: Demis Hassabis
Assertion Supported
Founders Fund Invested $2.3M for Nearly Half of DeepMind in 2010
“Founders fund wired 2.3 million to deep mine and they assumed ownership of a bit less than half the company. There was no other capital available. This is December, 2010.”
David Senra Apr 1, 2026 ▶ 29:29 The Relentless Missionary Creating AGI: Demis Hassabis
Assertion Partly supported
SpaceX launched 5x the orbital mass of all global competitors in 2025
“In 2025, SpaceX launched more mass to orbit than every other provider on Earth combined. Much more. This is crazy. Every payload from China, Russia, Europe, and all American launchers wasn't even a fifth of what SpaceX put into orbit.”
David Senra Mar 8, 2026 ▶ 1:46 How SpaceX Works
Assertion Supported
Falcon 9 launches every 2-3 days and reuses boosters 20 times
“A Falcon nine goes up every two to three days. Competitors manage single digit launches per year. The same boosters have been reused 20 times each.”
David Senra Mar 8, 2026 ▶ 2:08 How SpaceX Works
Assertion Supported
SpaceX's Starlink constellation now has over 9,000 satellites in orbit
“Starlink, their satellite internet constellation, now has over 9000 satellites in orbit, the largest in history, both built and launched by the same company.”
David Senra Mar 8, 2026 ▶ 2:23 How SpaceX Works
Assertion Supported
Senra: SpaceX is the most valuable private company on Earth
“SpaceX is now the most valuable private company on the planet.”
David Senra Mar 8, 2026 ▶ 2:34 How SpaceX Works
Assertion Supported
Bezos outspent Musk's $100M initial investment, proving capital alone isn't enough
“Elon putting in a hundred million dollars bought early runway, but Bezos poured much more into Blue Origin, and legacy primes Had multiples of this amount.”
David Senra Mar 8, 2026 ▶ 4:02 How SpaceX Works
Assertion Supported
Raw materials make up just 2% of a traditional rocket's price
“It turned out that the materials cost of a rocket was around two percent of the typical price, which is a crazy ratio for a large mechanical product.”
David Senra Mar 8, 2026 ▶ 5:57 How SpaceX Works
Assertion Partly supported
SpaceX built a Falcon 1 actuator for $3,900 versus vendor's $120,000 quote
“Consider the Falcon one actuator, a vendor quoted a 120,000 dollars in 18 months of development. SpaceX's engineers built it for 3900 dollars.”
David Senra Mar 8, 2026 ▶ 7:35 How SpaceX Works
Assertion Not checkable as stated
Building 40 identical Falcon 9s yearly unlocks automotive-style manufacturing learning curves
“Building 40 identical Falcon nines annually creates automotive style learning curves that are impossible in custom aerospace.”
David Senra Mar 8, 2026 ▶ 14:06 How SpaceX Works
Assertion Not checkable as stated
Boeing invests upfront in engineering analysis, whereas SpaceX invests in prototypes
“Where Boeing invests upfront in analysis, SpaceX invest upfront in prototypes.”
David Senra Mar 8, 2026 ▶ 18:17 How SpaceX Works
Assertion Supported
SpaceX chose stainless steel for Starship because it can weld outdoors
“This can lead to specific design decisions like using stainless steel for Starship, which is cheap, easy to weld and can be welded in a tent, by the way, instead of carbon fiber, which is expensive and requires giant autoclaves.”
David Senra Mar 8, 2026 ▶ 22:14 How SpaceX Works
Assertion Supported
Andrej Karpathy notes Elon Musk spends 50% of his time with engineers
“Andre Carpathie who worked for Elon at Tesla notes that Elon spends about 50% of his time talking directly to engineers, not to VP summarizing engineering work.”
David Senra Mar 8, 2026 ▶ 27:20 How SpaceX Works
Assertion Supported
Federer won 80% of career matches despite winning only 54% of points
“In the 1526 single matches I played in my career, I won almost 80% of those matches. Now I have a question for you. What percentage of points do you think I won in those matches? Only 54%. In other words, even top ranked tennis players Win barely more than hal…”
David Senra Feb 19, 2026 ▶ 1:27 How Roger Federer Works.
Assertion Supported
Federer's equity stake in Swiss shoe brand On reached $300M at IPO
“When ON goes public, Federer's stake in the company was worth about three hundred million dollars.”
David Senra Feb 19, 2026 ▶ 47:32 How Roger Federer Works.
Assertion Not checkable as stated
Two listeners invested $750M in QXO after hearing David Senra's podcast
“There's two people in the audience that didn't know who Brad was when I covered his book the first time, heard the episode, decided to look into this Brad Jacobs character, and have since invested seven hundred and fifty million dollars into Brad's company.”
David Senra Dec 29, 2025 ▶ 11:13 How To Make A Few MORE Billion Dollars: Brad Jacobs
Assertion Not checkable as stated
Senra: Koenigsegg, Dyson, and Musk integrate engineering with design
“Like he doesn't separate engineering design, which again, Dyson doesn't either. Elon doesn't either.”
David Senra Dec 3, 2025 ▶ 21:48 The Genius of Christian von Koenigsegg
Assertion Supported
Senra: Dietrich Mateschitz took $500M-$800M annual dividends with $20B-$30B net worth
“Over the last few years, he was taking anywhere from five hundred million to eight hundred million a year in annual dividends, and he had a net worth somewhere between 20 and thirty billion dollars.”
David Senra Nov 25, 2025 ▶ 0:20 Red Bull's Billionaire Maniac Founder
Assertion Supported
Red Bull allowed ingredient rumors unchecked and hosted a dedicated rumor page
“The company let the gossip travel unchecked, and even set up a page devoted to the rumors on its website.”
David Senra Nov 25, 2025 ▶ 7:11 Red Bull's Billionaire Maniac Founder
Assertion Supported
Dietrich Mateschitz paid for Red Bull's early advertising via agency sweat equity
“And so he actually paid for this initial work with labor. He had no money. So he actually helps out in the agency as a freelance employee just to pay for that marketing advertising that the advertising agency that his friend started is doing on behalf of Red B…”
David Senra Nov 25, 2025 ▶ 29:17 Red Bull's Billionaire Maniac Founder
Assertion Supported
Senra: Red Bull's primary bottling partnership was sealed purely on a handshake in 1987
“His main bottler relationship was sealed with a handshake. The bottler is this family business that has been around for over a hundred years. He meets with the lead, the head of that, that company, right? It's in German. I'm not even gonna try to pronounce it.…”
David Senra Nov 25, 2025 ▶ 43:13 Red Bull's Billionaire Maniac Founder
Assertion Supported
Red Bull paid zero dividends for its first 15 years
“To not go into debt, there were no dividend payouts of Red Bull until 1999. So you're talking for the first, what, 15 years of the company, he essentially just lived off of his own salary as the As the managing director of the corporation, and that all the pro…”
David Senra Nov 25, 2025 ▶ 48:05 Red Bull's Billionaire Maniac Founder
Assertion Not checkable as stated
Rockefeller maintained vast cash reserves to win bidding wars and survive downturns
“It is impossible to comprehend Rockefeller's breathtaking ascent without realizing that he always moved into battle backed by abundant cash. Whether writing out downturns or coasting on booms, he kept plentiful reserves and won many bidding contests simply bec…”
David Senra Nov 17, 2025 ▶ 26:25 How Rockefeller Worked
Assertion Partly supported
John D. Rockefeller acquired 23 rival refining companies in just four weeks
“In four weeks, Rockefeller bought 23 companies.”
David Senra Nov 17, 2025 ▶ 34:17 How Rockefeller Worked
Assertion Partly supported
Only five of 23 acquired rival refiners chose Standard Oil stock
“Of these 23 people, he would offer stock or cash. You choose. Only five took the stock.”
David Senra Nov 17, 2025 ▶ 36:27 How Rockefeller Worked
Assertion Supported
Rockefeller used the Leading Refiners Association to access competitors' financial data
“In fact, the information he gets from this association helps him become a monopoly. And so Rockefeller's actually chosen to be the head of the association. That's really important because then he gets to know every single business. He has to see their books. H…”
David Senra Nov 17, 2025 ▶ 39:19 How Rockefeller Worked
Assertion Supported
Rockefeller cut refined oil prices below cost to break competitors
“He would cut the price of refined to below costs, knowing that every sale is now competitor had to drop the price to meet only hasten their demise. He would keep the prices low until he broke the competitors that didn't want to consolidate or sell.”
David Senra Nov 17, 2025 ▶ 47:05 How Rockefeller Worked
Assertion Not yet assessed · timeframe Nov 2025
Standard Oil commercialized over 50 oil byproducts without inventing a single one
“So standard oil sold over 50 byproducts from the refining of oil. Standard did not create a single one of those innovations. Rockefeller would let others experiment. He'd wait until they developed a profitable market, and then he would move in.”
David Senra Nov 17, 2025 ▶ 51:24 How Rockefeller Worked
Assertion Supported
Ellison Abandoned Client-Server to Focus Entirely on Internet Computing
“Ellison's decision to the horror of many colleagues and customers to abandon all further development of client server based applications and concentrate Oracle's entire engineering effort on building for the new computing architecture of the internet.”
David Senra Nov 4, 2025 ▶ 3:23 How Larry Ellison Thinks
Assertion Not yet assessed · timeframe Nov 2025
Larry Ellison Never Truly Wanted to Be CEO or Run a Company
“Ellison, by his own admission, had never really wanted to be a CEO and never really wanted to run a company.”
David Senra Nov 4, 2025 ▶ 6:29 How Larry Ellison Thinks
Assertion Supported
Early Oracle Sales Relied on Destructive End-of-Quarter Discounting
“One of the oldest and worst habits of the Oracle sales organization was the use of aggressive discounting to get existing customers to buy software before they actually needed it.”
David Senra Nov 4, 2025 ▶ 10:35 How Larry Ellison Thinks
Assertion Supported
Renaming Network Computing to Internet Computing Caused Oracle Sales to Surge
“Network computing architecture got absolutely no traction in the marketplace. So we announced a successor called internet computing architecture and sales took off. The big difference between the two, the name.”
David Senra Nov 4, 2025 ▶ 12:09 How Larry Ellison Thinks
Assertion Not checkable as stated
Public Fights with Bill Gates Greatly Enhanced Oracle's Brand
“This intentional fight that he picks against Bill Gates and Microsoft and how beneficial the positioning was. That he chose and how this message spread through the media and actually enhanced greatly enhanced not only his individual stature, but the stature of…”
David Senra Nov 4, 2025 ▶ 12:37 How Larry Ellison Thinks
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