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 31 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 Partly supported
Srinivas: Google possessed only fourth or fifth best AI models in 2023-2024
“And 2024, 20 23 especially, and large part of 2024 too, Google had like, maybe a fourth or fifth best models at any moment. So as a startup outside Google, you had access to AI that was better than what Google internally had.”
Aravind Srinivas Jul 11, 2025 ▶ 13:06 Aravind Srinivas: Perplexity's Race to Build Agentic Search · Y Combinator
Assertion Supported
Jeff Dean: Google built a neural simulator 300,000x faster than full DFT
“Take a bunch of output from those simulation runs, the input molecule configurations and the outputs of that. The extensive simulator and then use it to train a neural approximation to the simulator. So this is now a validation device, but instead of it taking…”
Jeff Dean Jul 30, 2026 ▶ 45:05 Jeff Dean: The 1% Rule for Building in AI · Y Combinator
Assertion Supported
Srinivas: Sundar Pichai is personally doing bug support on X
“Like I've noticed even Sundar is doing bug support on X right now.”
Aravind Srinivas Jul 11, 2025 ▶ 5:42 Aravind Srinivas: Perplexity's Race to Build Agentic Search · Y Combinator
Assertion Partly supported
Google Photos Reached One Billion Users in Under Four Years
“Google Photos grew to more than a billion users in less than four years, which I think is the fastest growing product of all time, at least at the time.”
David Lieb Dec 18, 2024 ▶ 14:50 How David Lieb Turned a Failing Startup Into Google Photos | Backstory · Y Combinator
Assertion Supported
Hu: Seven 'Attention' authors founded startups collectively valued over $6B
“That paper came out in 2017, and the fun fact, I was just looking this up, out of all those authors, eight authors, seven of them started different companies, and all of the companies in total, they're rate, they're worth valuation more than six billion.”
Diana Hu Feb 8, 2024 ▶ 28:33 The Truth About Building AI Startups Today · Y Combinator
Assertion Supported
Caldwell: Google ran on a stale search index for months around 2001
“There was some point where for maybe three months, maybe four months, I don't remember the exact details. There was no new index of Google. They had stale results. So anyone, any user of Google, they didn't know that, you know, the user didn't know this, but a…”
Dalton Caldwell Feb 16, 2022 ▶ 22:05 Things That Don't Scale, The Software Edition – Dalton Caldwell and Michael Seibel · Y Combinator
Assertion Supported
Caldwell: Gmail invite system was forced by server limits, not growth hacking
“They physically did not have enough servers. So they had to build an invite system. There was not an option to not, but basically there was no option other than building an invite system. It was not like genius PM growth hacking.”
Dalton Caldwell Feb 16, 2022 ▶ 5:19 Things That Don't Scale, The Software Edition – Dalton Caldwell and Michael Seibel · Y Combinator
Assertion Supported
Cutts: The SearchKing lawsuit established search results are First Amendment protected
“The result of that lawsuit was that search results are protected by the first amendment.”
Matt Cutts Dec 4, 2019 ▶ 8:36 Matt Cutts on the US Digital Service and Working at Google for 17 Years · Y Combinator
Assertion Supported
Allred: Google spent $100 million in compensation to retain Sundar Pichai
“Google has in the past spent a hundred million dollars to retain Sundar and stuff like that.”
Austen Allred Apr 3, 2019 ▶ 26:46 A CS Education That's Free Until You Get a Job - Austen Allred of Lambda School · Y Combinator
Assertion Supported
Political actors use traditional SEO tactics to game Google and YouTube
“We're seeing a lot more gaming of the algorithms as well, and more of these kind of sophisticated techniques. So not just liking and sharing, but using specific keywords to get content trending, to try to get things at the top of Google's search algorithm, try…”
Samantha Bradshaw Jan 23, 2019 ▶ 5:02 Tracking Political Manipulation Through Social Media - Samantha Bradshaw · Y Combinator
Assertion Supported
Schwartz: Google dislikes ranking search-within-search platforms like Pinterest
“Google specifically does not like search within search. Google would much prefer that you don't go to Pinterest, that you go directly to where that image was, but maybe that site didn't do a great job of optimizing the image, but Pinterest did, so now Pinteres…”
Eli Schwartz Sep 27, 2018 ▶ 19:46 SEO Advice from SurveyMonkey Director of SEO and Growth, Eli Schwartz · Y Combinator
Assertion Supported
Schwartz: Local businesses have a Google ranking advantage over national competitors
“You don't really need to rank on unclogged drains anymore, because Google is very local. So if you're in San Francisco, and you're a plumber, and someone searches unclogged drains, you now have a much higher chance of ranking on unclogged drains than Roto-Root…”
Eli Schwartz Sep 27, 2018 ▶ 13:53 SEO Advice from SurveyMonkey Director of SEO and Growth, Eli Schwartz · Y Combinator
Assertion Supported
Schwartz: Sites penalized by Google can recover within weeks
“Now, like, things are more automated and algorithmic, where if you got hit by the penalty one day, you cleaned it up, did everything possible, maybe filed a reconsideration request, you can be back in a couple weeks.”
Eli Schwartz Sep 27, 2018 ▶ 46:01 SEO Advice from SurveyMonkey Director of SEO and Growth, Eli Schwartz · Y Combinator
Assertion Supported
Schwartz: Google grew Korean search share via Samsung and LG ties
“What Google used to not be dominant in In Korea, and they've been increasing dominance through their Trojan horse of Android. So Google's obviously very closely partnered with Samsung and LG, Korean companies. And as Korean users use these products, they use G…”
Eli Schwartz Sep 27, 2018 ▶ 38:25 SEO Advice from SurveyMonkey Director of SEO and Growth, Eli Schwartz · Y Combinator
Assertion Supported
Gil: Google spent hundreds of millions yearly on Firefox and Adobe distribution
“And so examples where people were very aggressive about distribution with things like Google, where they were spending hundreds of millions of dollars a year on things like Firefox, having Google prominently displayed on its homepage. They literally paid for, …”
Elad Gil Jul 27, 2018 ▶ 20:52 Elad Gil Shares Advice from the High Growth Handbook, a Guide to Scaling Startups · Y Combinator
Assertion Supported
Dean: Sanjay Ghemawat and I published a 30-page code optimization guide
“Oh we actually published the document maybe a few months ago called performance hints that Sanjay and I wrote. That's like a 30 page document about, you know, various kinds of performance tricks and Some people have taken that and then given it in summarized f…”
Jeff Dean Jul 30, 2026 ▶ 21:40 Jeff Dean: The 1% Rule for Building in AI · Y Combinator
Assertion Supported
Friedman: Gemini API added thinking traces for debugging prompts
“Cause if you're just using Gemini via the API until recently, you did not get the thinking traces and like the thinking traces are like the critical debugging information to like, understand like What's wrong with your prompt? They just added it to the API. So…”
Jared Friedman May 30, 2025 ▶ 13:00 State-Of-The-Art Prompting For AI Agents · Y Combinator
Assertion Supported
Caldwell: MapReduce was created because Google's batch indexing failed
“This was the genesis for them to create MapReduce, which they wrote a paper about. Which was a way to parallelize and break into pieces all the little bits of crawling and re-indexing the web.”
Dalton Caldwell Feb 16, 2022 ▶ 22:30 Things That Don't Scale, The Software Edition – Dalton Caldwell and Michael Seibel · Y Combinator
Assertion Partly supported
Alströmer: Pinterest acquires new users primarily via Google SEO
“If you think of Pinterest, SEO is the re, the real way how Pinterest is going. You type something in on Google, there already exists a Pinterest board for that, and you land on that Pinterest board. That's how they acquire new users.”
Gustaf Alströmer Aug 15, 2019 ▶ 25:34 Gustaf Alströmer - Growth for Startups · Y Combinator
Assertion Supported
Rossmann: Make School Has Run Income Share Programs Since 2014
“We've been running the income share based program since 2014. So we actually have five years of data, our students getting jobs at Facebook, Google and Tesla and all these great companies.”
Jeremy Rossmann Jun 19, 2019 ▶ 3:56 Jeremy Rossmann of Make School on Income Share Agreements and the Future of College · Y Combinator
Assertion Supported
Schwartz: Google Play ranks apps based on all visible text fields
“So on Google, the way they rank an app is based on all the visible text. So it's the name of the app, which is sort of like the title. The short description, which is forget how many characters, but a shorter page description of the app, which you see right ab…”
Eli Schwartz Sep 27, 2018 ▶ 10:02 SEO Advice from SurveyMonkey Director of SEO and Growth, Eli Schwartz · Y Combinator
Prediction Held up
Schwartz: Google will eventually understand images directly without alt text
“Google eventually will figure out what images are, and they're getting closer to figuring out what images are.”
Eli Schwartz Sep 27, 2018 ▶ 18:53 SEO Advice from SurveyMonkey Director of SEO and Growth, Eli Schwartz · Y Combinator
Assertion Supported
Google's Series A investors required founders to hire an outside CEO
“I mean, this was back in the days when Google's VCs had invest, insisted that the founders hire an outside CEO as a condition of their Series A round.”
Jessica Livingston Jul 11, 2018 ▶ 9:51 Jessica Livingston Shares 9 Things She Learned From Founding YC · Y Combinator
Assertion Supported
Buchheit: Google founders tried to sell for $1M to Yahoo and Excite
“Larry and Sergey were PhD students there. And they actually wanted to continue being PhD students and, like, finish their degree, so they went off and tried to sell Google to one of the big internet companies of the time, so, you know, Yahoo, Xsite, Infoseek. …”
Paul Buchheit Mar 7, 2018 ▶ 5:41 Paul Buchheit - Startup Investor School Day 2 · Y Combinator
Assertion Supported
Bernstam: Firebase pivoted from web chat into backend services before Google acquisition
“Well, Firebase did, right? So they were actually in our batch. They were a different company at the time. They were doing like basically chat for every website. They were trying to do that for everyone. And they ended up pivoting later into doing basically lik…”
Tikhon Bernstam Sep 8, 2017 ▶ 26:40 The Challenges a Repeat Founder Faces - Tikhon Bernstam · Y Combinator
Assertion Supported
Eck: Magenta has a core API enabling real-time MIDI AI collaboration
“I think the API, the core API that allows us to move music around in real time in MIDI, and actually have a meaningful conversation between an AI model and multiple musicians is there, and there's just a bunch more thinking that needs to happen, right, to get …”
Doug Eck Jul 21, 2017 ▶ 42:58 Making Music and Art Through Machine Learning - Doug Eck of Magenta · Y Combinator
Assertion Supported
Eck: Google AI Duet relies on simple 2002 RNN technology
“And what I noticed, even with AI Duet, which is this like web-based, like, it's a simple RNN. It's like, I can lay claim. It's technology that was published in 2002. It's really a very simple, really simple.”
Doug Eck Jul 21, 2017 ▶ 13:16 Making Music and Art Through Machine Learning - Doug Eck of Magenta · Y Combinator
Assertion Supported
Hwang: Google DeepDream's barbell representation always included human arms
“It turns out that when you ask it to see, like, ask it to reveal what, like, it thinks a barbell looks like, you know, barbells always show up with human arms attached to them.”
Tim Hwang Jun 16, 2017 ▶ 4:48 At the Intersection of AI, Governments, and Google - Tim Hwang · Y Combinator
Assertion Supported
Zaremba: Google avoided ML in Search early on over interpretability issues
“Over the time Google search started to use machine learning because it was, it helps to improve results but simultaneously, they wanted to avoid it for some time as it's more difficult to interpret the results, and it's more difficult to actually understand wh…”
Wojciech Zaremba May 17, 2017 ▶ 11:53 An AI Primer with Wojciech Zaremba · Y Combinator
Assertion Supported
Schwartz: Meta keywords are completely obsolete for SEO
“Meta keywords is a great example of something that's no longer useful. And the reason meta keywords existed is because Google and other search engines actually were relevant at the time, didn't have a really good way of understanding text.”
Eli Schwartz Sep 27, 2018 ▶ 8:29 SEO Advice from SurveyMonkey Director of SEO and Growth, Eli Schwartz · Y Combinator
Assertion Supported
Benjamin: Google, IBM, and Intel are primarily pursuing superconducting qubits
“In fact, if you look online, you will hear more about the superconducting qubits, which is the approach, the main approach that Google and IBM and even Intel are taking.”
Simon Benjamin May 25, 2018 ▶ 40:37 Simon Benjamin on Architectures for Quantum Computing · Y Combinator
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