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 11 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 Not checkable as stated
Dennett: Endolith observed 1.7x to 1.9x copper uplift in lab
“In lab, we've seen 1.7 to 1.9 times greater uplift, but depending on the complexity, if it's primary or secondary sulfides or oxides, it can change and it can vary so much.”
Liz Dennett Aug 26, 2026 ▶ 24:06 The microbial solution to our massive copper shortfall
Disclosure
Dennett: Endolith deliberately avoids corporate VC investors on its cap table
“We, not having CVCs on our cap table has been a deliberate structural choice.”
Liz Dennett Aug 26, 2026 ▶ 32:17 The microbial solution to our massive copper shortfall
Disclosure
Dennett: Endolith avoids genetic engineering in mineral extraction platform
“We are not genetically engineering microbes. We are using communities that already exist, and we essentially run them through, like, an Olympic training boot camp or techniques that are adjacent to something called adaptive laboratory evolution, where”
Liz Dennett Aug 26, 2026 ▶ 8:06 The microbial solution to our massive copper shortfall
Insight
Dennett: Identifying mine microbes is useless without linking to site chemistry
“The bugs that are there are not necessarily the same ones as the microbes that are doing things, and if you can't tie that to the chemistry and the mineralogy and the operating parameters, it doesn't actually turn into a lever that you can use.”
Liz Dennett Aug 26, 2026 ▶ 36:13 The microbial solution to our massive copper shortfall
Insight
Dennett: An extra $100M would not fundamentally change Endolith's ultimate success
“The challenge, though, is that it's still a stepwise way of de-risking and mining. A hundred million dollars today is not going to fundamentally change. I do not believe our ultimate success. If it did change that, we'd be out fundraising for a hundred million…”
Liz Dennett Aug 26, 2026 ▶ 45:20 The microbial solution to our massive copper shortfall
Assertion Supported
Dennett: Endolith is actively working with BHP and Rio Tinto
“We work closely with a lot of the large mining companies. We publicly are working with BHP and Rio Tinto”
Liz Dennett Aug 26, 2026 ▶ 32:23 The microbial solution to our massive copper shortfall
Insight
Dennett: Revenue-share models incentivize arguing with customers over yield attribution
“We also made an early call to stay away from revenue shares on purpose. Part of that is because the second your fee is tied to a percentage of the customer's yield, you're incentivized to argue with them about where that improvement came from.”
Liz Dennett Aug 26, 2026 ▶ 27:53 The microbial solution to our massive copper shortfall
Disclosure
Dennett: Endolith uses microbes and data to extract copper from mined material
“So at Endolith, we use microbes and data to pull more copper out of material that's already been mined at operations that already exist.”
Liz Dennett Aug 26, 2026 ▶ 3:42 The microbial solution to our massive copper shortfall
Assertion Supported
Dennett: Endolith microbes liberate copper rather than bioaccumulating it
“There's no downstream processing. These bugs don't accumulate copper inside of them to where we have to, like, split them open and harvest the copper. It's not like that. They just facilitate liberation of more copper faster.”
Liz Dennett Aug 26, 2026 ▶ 29:12 The microbial solution to our massive copper shortfall
Disclosure
Dennett: Endolith injects on-site cultured microbes directly into heap irrigation
“What we do at Endolith is we drive in our bio rig. It is where we grow our microbes on site. It has instrumentation. It has the ability to upload data, and we grow microbes. We grow them, and we plug them directly into those sulfuric acid irrigation lines. Not…”
Liz Dennett Aug 26, 2026 ▶ 21:18 The microbial solution to our massive copper shortfall
Assertion Supported
Dennett: Mining heap leaches are self-contained and heavily lined
“So a key thing to note about these heap leeches is they're self-contained environments. They are double-lined, if not quadruple-lined, they are in place, and native microbes already exist there.”
Liz Dennett Aug 26, 2026 ▶ 28:44 The microbial solution to our massive copper shortfall
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