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 18 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 Contradicted
Maslin: Virtually 100% of Magnet-Making Equipment Comes from China
“If China manufactures, 94% of the global supply of these magnets, where do you think all of the equipment to make those magnets comes from? It's virtually a hundred percent.”
John Maslin Aug 11, 2025 ▶ 10:04 How The Rarest Company On Earth Raised $75M from Altimeter · Sourcery with Molly O'Shea
Assertion Partly supported
Maslin: Vulcan Elements won DOD contracts across every military branch
“One thing that we're really proud of here is we've won several DOD contracts over the line, over the last nine months with every branch of the military, top priority programs, making sure that the defense industrial base has the material that it needs to go an…”
John Maslin Aug 11, 2025 ▶ 24:31 How The Rarest Company On Earth Raised $75M from Altimeter · Sourcery with Molly O'Shea
Prediction Not checkable as stated
Maslin: Humanoid robotics reaching planned volumes could 10x global rare earth magnet demand
“If we hit the volumes that companies like Optimus or Figure AI are discussing, that could 10 X the global demand for rare earth magnets by themselves, not even touching on the other industries that are going exponential, like drones or cars”
John Maslin Aug 11, 2025 ▶ 34:26 How The Rarest Company On Earth Raised $75M from Altimeter · Sourcery with Molly O'Shea
Assertion Supported
DOD rules ban Chinese magnets in defense hardware by 2027
“If you look at section eight, 44 of the fiscal year, 21, NDAA, they actually banned the use of Chinese magnets and there have been follow on addendums that say by January first of 20, 27, you need any company that sells to the DOD. If there's a magnet, which i…”
John Maslin Aug 11, 2025 ▶ 37:19 How The Rarest Company On Earth Raised $75M from Altimeter · Sourcery with Molly O'Shea
Assertion Supported
Maslin: China Produces Up to 94% of Rare Earth Magnets, US Under 1%
“China was producing over 90, up to 94% of the global supply and the US was producing less than one percent.”
John Maslin Aug 11, 2025 ▶ 4:53 How The Rarest Company On Earth Raised $75M from Altimeter · Sourcery with Molly O'Shea
Assertion Not checkable as stated
Maslin: Autonomous Vehicles, AI Data Centers, and Robotics Require Rare Earth Magnets
“When you think about the next generation technologies that will define the 21st century, whether that's Autonomous vehicles or robotics or the data centers that enable AI, drone technology. All of that has to have a rare earth magnet turning that motor, sensor…”
John Maslin Aug 11, 2025 ▶ 5:00 How The Rarest Company On Earth Raised $75M from Altimeter · Sourcery with Molly O'Shea
Assertion Contradicted
Maslin: Every moving piece of US defense hardware requires rare earth magnets
“When you think about national security, every satellite, every drone, every missile, every tank, every ship, every submarine, every piece of hardware that moves, that the defense department uses, needs a rare earth magnet.”
John Maslin Aug 11, 2025 ▶ 5:36 How The Rarest Company On Earth Raised $75M from Altimeter · Sourcery with Molly O'Shea
Assertion Supported
China mines 60% of rare earths but manufactures 94% of magnets
“Today, China mines 55 to 60% of the rare earths. They manufacture 90 to 94% of the magnets. They're actually importing the difference.”
John Maslin Aug 11, 2025 ▶ 9:32 How The Rarest Company On Earth Raised $75M from Altimeter · Sourcery with Molly O'Shea
Assertion Not checkable as stated
Maslin: Vulcan Elements produced and shipped magnets within four months
“And in four months, we are already producing magnets. We are making magnets and shipping them to customers qualifying them with customers across our disk drives for data centers that enable AI, automotive applications. Drones, robotics several different defens…”
John Maslin Aug 11, 2025 ▶ 24:11 How The Rarest Company On Earth Raised $75M from Altimeter · Sourcery with Molly O'Shea
Prediction Not checkable as stated
Maslin: Vulcan Elements aims to 5x-20x factory output using software in a few years
“We're collecting all of that data, we're building out our software team, and we're thinking about how we actually implement that into our facilities so that we can five, 10, 20 X our output with the same type of machinery in a couple of years.”
John Maslin Aug 11, 2025 ▶ 35:39 How The Rarest Company On Earth Raised $75M from Altimeter · Sourcery with Molly O'Shea
Assertion Not checkable as stated
Vulcan Elements closed its Series A term sheets in four weeks
“We were able to go from initial conversations to sign term sheets in about four weeks.”
John Maslin Aug 11, 2025 ▶ 2:58 How The Rarest Company On Earth Raised $75M from Altimeter · Sourcery with Molly O'Shea
Assertion Supported
Maslin: Vulcan co-founder opened one of first US magnetics labs in 20 years
“My co-founder, he's a PhD in electrical engineering with a focus on magnetics. He opened one of the first rare with magnetic slabs in the United States in two decades. Down at the University of Central Florida.”
John Maslin Aug 11, 2025 ▶ 14:41 How The Rarest Company On Earth Raised $75M from Altimeter · Sourcery with Molly O'Shea
Assertion Supported
Maslin: Rare earth magnets hold up to 150 times their weight
“These magnets can hold up to a 150 times their weight.”
John Maslin Aug 11, 2025 ▶ 21:38 How The Rarest Company On Earth Raised $75M from Altimeter · Sourcery with Molly O'Shea
Assertion Supported
Maslin: MP Materials operates North America's only scaled rare earth mine
“In MP materials, they operate the only scaled rare earth mine in North America right now.”
John Maslin Aug 11, 2025 ▶ 23:23 How The Rarest Company On Earth Raised $75M from Altimeter · Sourcery with Molly O'Shea
Assertion Not checkable as stated
Maslin: Vulcan Elements had 500 applicants for five roles without marketing
“You know, the last five positions that we've filled, we had over 500 applications and that's with zero marketing.”
John Maslin Aug 11, 2025 ▶ 26:01 How The Rarest Company On Earth Raised $75M from Altimeter · Sourcery with Molly O'Shea
Assertion Not checkable as stated
Maslin: Vulcan Elements booked over 95% of pilot facility capacity a year ago
“We actually sold it out over 12 months ago over 95% capacity, leaving a little bit for, you know, samples for customers that we really want to go and work with.”
John Maslin Aug 11, 2025 ▶ 26:39 How The Rarest Company On Earth Raised $75M from Altimeter · Sourcery with Molly O'Shea
Assertion Not checkable as stated
Maslin: Vulcan Elements bought main factory equipment at 20 cents on dollar
“Some of the pieces of equipment, one of the main pieces of equipment, we were actually able to get at auction at 20 cents on the dollar, and then we refurbished it. It works perfectly. We use it every single day.”
John Maslin Aug 11, 2025 ▶ 28:50 How The Rarest Company On Earth Raised $75M from Altimeter · Sourcery with Molly O'Shea
Assertion Not checkable as stated
Maslin: Vulcan feeds manufacturing data into AI models within an hour
“We have a full analytics and characterization lab where within an hour of every step of the process, we're feeding that data into our own models and then training them to tell us Hey, maybe run that piece of equipment for 10 more minutes or at 10 degrees hotte…”
John Maslin Aug 11, 2025 ▶ 32:58 How The Rarest Company On Earth Raised $75M from Altimeter · Sourcery with Molly O'Shea
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