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

Assertion Supported
Willison: StrongDM used coding agents to simulate Slack, Jira, and Okta APIs
“So what they did is they built their own simulation of Slack and Jira and Okta and all of this software they were integrating with. And the way they did that is they basically took the API documentation for the public APIs for Slack and the client libraries, t…”
Simon Willison Apr 2, 2026 ▶ 17:17 An AI state of the union: We’ve passed the inflection point & dark factories are coming
Assertion Supported
Rachitsky: Reader Survey Ranks ChatGPT Ahead of Gmail and Slack
“I did a survey of my readers and asked them what tools to use every day in your work and most use. And ChatGPT was Number one above Gmail, above Slack, above anything else. 90% of people said they use ChatGPT regularly.”
Lenny Rachitsky Feb 9, 2025 ▶ 5:09 OpenAI researcher on why soft skills are the future of work | Karina Nguyen
Assertion Partly supported
Crusson: Atlassian aimed to win enterprise communications before Slack and Teams
“I worked on HipChat and Stride. HipChat was one known, Stride less so we were trying to win the enterprise communications market before Slack and Microsoft Teams came about.”
Tanguy Crusson Jun 16, 2024 ▶ 3:35 Hard-won lessons building 0 to 1 inside Atlassian | Tanguy Crusson (Head of Jira Product Discovery)
Assertion Partly supported
Lemkin: Most of Slack's revenue was enterprise sales at IPO
“Slack started all self-serve. And by the time they went public, the majority of their revenue was enterprise sales.”
Jason Lemkin Feb 18, 2024 ▶ 6:50 Building a world-class sales org | Jason Lemkin (SaaStr)
Assertion Contradicted
Weiss: Slack doubled paid customer growth after a 2018 self-serve pivot
“We wound up kind of doubling the rate of our new paid customer growth in the year and a couple of years after that and kind of reaccelerating the self service business.”
Noah Weiss Jul 23, 2023 ▶ 47:18 The 10 traits of great PMs, AI, and Slack’s approach to product | Noah Weiss (Slack, Google)
Assertion Supported
Singleton: Stripe Co-Created Stripe Billing With Slack and Figma
“And when we got to starting the Stripe Billing product, we realized that there were a number of our existing users. These were companies like Figma and Slack. We were already using Stripe for payments, but had these subscriptions business models. And we figure…”
David Singleton May 4, 2023 ▶ 18:44 Building a culture of excellence | David Singleton (CTO of Stripe)
Assertion Supported
Former Slack SVP Peter Vidani joined The Browser Company as an IC
“We just hired someone named Peter Vidani. When I was 20 building consumer social software, he was like the coolest, most impressive person. He was the first designer at Tumblr, ran the design team at Tumblr for seven years. and the most recently was SVP of de…”
Josh Miller Mar 19, 2023 ▶ 33:10 Competing with giants: An inside look at how The Browser Company builds product | Josh Miller (CEO)
Assertion Supported
Walter: Slack revenue grew 10x from $50M during his tenure
“When I joined, revenue was around fifty million. When I left roughly four years ago, it was 10 extra.”
Jules Walter Jan 5, 2023 ▶ 5:07 Leveraging mentors to uplevel your career | Jules Walter (YouTube, Slack)
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