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.
why aren't all 21 resolved? a statement only gets an assessment when the public record can support or contradict it. opinions and what-ifs never can, and 1 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
Klein: Browserbase delivers 90% of computer-use functionality at 10% of OS cost
“BrowserBase can run browsers for way cheaper than you can if you're running a full-fledged OS with a GUI, you know, operating system. And I think that's just an advantage of the browser. It is like, browsers are like little OSs, and you can run them very effic…”
Klein: Browserbase will be a billion-dollar company within five years
“I can predict that Browserbase will be a billion dollar company one day. So let's check back in five years.”
Klein: Having co-founders slows startup execution by adding an extra alignment layer
“If you want to move extremely fast as a company, one of the hard parts about having co-founders is that there's like, you have to do the co-founder alignment and then the company alignment. And then there's people on the team that probably tell things to one c…”
Klein: Polarizing binary decisions make maintaining company culture easier to assimilate
“When you make people make a polarizing decision of like, I will come to an office five days a week, people then end up making more decisions that are aligned with the culture. So it's almost like if you can make your culture binary or you're in or out, It beco…”
Klein: Authentication, not CAPTCHAs, will be the biggest barrier for AI agents
“I actually think that off is the biggest thing that will prevent agents from accessing stuff, not captures.”
Klein: Complex developer primitives like web browsers require bespoke, dedicated infrastructure
“For tools and primitives with sufficient levels of complexity, you need to have a solution that's really bespoke to that primitive, you know, and I am sufficiently convinced that the browser is complex enough to deserve a primitive.”
Klein: Browserbase's PE-backed rival hasn't updated its dashboard in five years
“Our biggest competitor actually is partly owned by private equity, and they just jacked up their prices quite a bit, and the dashboard hasn't changed in five years”
Klein: DOM-anchored agent actions are more reliable than vision-based coordinate clicking
“I think that using mouse click or mouse coordinates, I've seen that proved to be less reliable than I would like. And I just wonder if that's the right form factor. What we've done with our framework is Anchor it to the DOM itself. Anchor it to the actual item…”
Klein: AI apps requiring browser interactions need dedicated backend cloud infrastructure
“If you're building applications that rely on a browser and it's more part of a greater like AI app experience, you probably need something that's more like infrastructure, not a consumer app.”
Klein: Browserbase operates fully in-person Monday to Friday from 10 to 6
“Culturally, like we're fully in-person. Maybe that's one crazy take that we do, but we're also like not too in-person. Like our first meeting's at 10 a.m. People leave around five or six. We work Monday to Friday in-person, and those like, that's the expectati…”
Klein: Stagehand is built for AI agent reliability, not dedicated web scraping
“If you're building a scraping company, StageChan's not your thing. You probably want something that's gonna, like, get HTML content, you know, convert that to Markdown, query it. That's not what StageChan does. StageChan's more, more about reliability.”
Klein: Headless browsers are a core primitive for future LLM operating systems
“Browsers are a core primitive of infrastructure for the LLMOS that's going to exist in the future”
Klein: Web scraping workflows should use a tiered waterfall architecture
“If you're building web scraping workflows, what you should do is have a waterfall. You should have the first request is a curl to the website. See if you can get it without even using a browser. And then the second request may be like a scraping specific API. …”
Klein: The future of software is software operating other software autonomously
“The future of software is software using software.”
Klein: Browserbase briefly became the largest regional Fargate customer before moving lower-level
“We used to be a giant Fargate customer. Actually, the first version of BrowserBase was ECS and Fargate. And I unfortunately it's a great product. I think we were actually the largest Fargate customer in our region for a little while.”
Klein: Authentication providers will offer dedicated login features for AI agents
“I think there'll be agent off in the future. I don't know if it's going to happen from an individual company, but actually authentication providers that have a You know, hidden login as agent feature, which will then you put in your email. You'll get a push no…”
Klein: Former YC CTOs and ex-founders make the best early startup hires
“Culturally, we're a lot of like former YCCTOs and like ex-founders or future founders. And I've just found that those people tend to be just really great early hires for a company. They get it.”
Klein: Browserbase spent zero dollars on AI in its AI Grant batch
“I'm in AI grant, you know, browsers was an AI grant, but we were the only company in that AI grant batch that used zero dollars on AI spend.”
Klein: Founders from Stytch, Clerk, and Okta Ventures invested in Browserbase
“And, you know, three from Stitch is an investor, Colin from Clark. Okta Ventures, all investors in BrowserBase because like, I hope they solve this because it'll make BrowserBase's mission more possible.”
Klein: Browser state branching and forking is on Browserbase's product roadmap
“And hopefully find the right answer and then say, okay, this was actually the right one and memorize that and go there in the future on the roadmap for sure.”
Klein: Browserbase grew to 20 people and Series A in year one
“Like, BrowserBase is actually pretty close to our first birthday, so we are one years old, and going from, you know, Starting a company as a solo founder to, you know, having a team of 20 people, you know, a series A, but also being able to support hundreds of…”