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 8 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

Prediction Held up
Chamath predicts LK-99 is merely diamagnetic, not a superconductor
“My intuition on this is that this is diamagnetic. And I think we're gonna find that, you know, it was, it's like yet another material added to the list of materials, and it's okay.”
Chamath Palihapitiya Aug 4, 2023 ▶ 18:28 E140: LK-99, Sclerotic establishments, Fitch downgrades US debt, Trump indicted... again
Assertion Supported
Friedberg: Five labs published modeling papers supporting LK-99 superconductivity
“Five different labs have now published papers that show that the way that this material is supposedly produced, it should create these pathways or these energy states with the electrons that theoretically could enable superconductivity at a very high temperatu…”
David Friedberg Aug 4, 2023 ▶ 3:37 E140: LK-99, Sclerotic establishments, Fitch downgrades US debt, Trump indicted... again
Opinion
Friedberg: LK-99, if real, is this century's top physics discovery
“If they did not make a fraudulent claim, and it is And it does turn out to be real, then I do think it'll end up being the most important discovery in physics of this century.”
David Friedberg Jul 27, 2023 ▶ 1:07:16 E139: Recapping Chamath's wedding, VC surplus, unions vs Hollywood, room-temp superconductors & more
Prediction Not checkable as stated
Friedberg: Confirming LK-99's industrial viability is likely months to years away
“Whether or not this actually does turn into a room temperature superconducting material that can be industrialized and used in all these applications everyone's really excited about, I think it's probably months to years away from knowing.”
David Friedberg Aug 4, 2023 ▶ 15:08 E140: LK-99, Sclerotic establishments, Fitch downgrades US debt, Trump indicted... again
Assertion Contradicted
Friedberg: Chinese lab made 8,000 LK-99 samples to find one working specimen
“There's one in China, and the one in China that measured the zero resistance at negative a hundred degrees, They created 8000 samples, so they found one that worked.”
David Friedberg Aug 4, 2023 ▶ 22:11 E140: LK-99, Sclerotic establishments, Fitch downgrades US debt, Trump indicted... again
Assertion Supported
Friedberg: Simulations show LK-99 requires precise lead-atom replacement to superconduct
“The simulation showed that you have to replace only one of the lead atoms, not any of the other ones, in order for this to work. And that could explain why everyone's having different results in the lab trying to reproduce this.”
David Friedberg Aug 4, 2023 ▶ 8:45 E140: LK-99, Sclerotic establishments, Fitch downgrades US debt, Trump indicted... again
Assertion Supported
Friedberg: No lab has replicated LK-99 zero resistance at room temperature
“No one's yet replicated this at room temperature.”
David Friedberg Aug 4, 2023 ▶ 20:38 E140: LK-99, Sclerotic establishments, Fitch downgrades US debt, Trump indicted... again
Assertion Supported
Friedberg: Chinese lab observed LK-99 superconductivity at 100 degrees below zero Celsius
“There was a lab yesterday in China that published no resistance, but they had to cool it down to a hundred degrees below freezing, and so it wasn't at room temperature, but it did superconduct, it did have no resistance.”
David Friedberg Aug 4, 2023 ▶ 9:00 E140: LK-99, Sclerotic establishments, Fitch downgrades US debt, Trump indicted... again
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