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 4 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
Knaup: Mesosphere, Twitter, and Airbnb are major committers to Apache Mesos
“It's a top-level Apache project. And, you know, Mesosphere, Twitter, and Airbnb are major committers on the project.”
Tobi Knaup Sep 22, 2014 ▶ 8:46 Tobi Knaup, Mesosphere // Data Driven #29 // Sep 2014 (Hosted by FirstMark Capital)
Assertion Supported
Tan: Sift Science has 25 employees and 175 customers including Twitter and Uber
“We have 25 people out in San Francisco just closed our Series B recently, and we have about a 175 customers around the world, including Twitter, Square, Match.com, OpenTable, Uber, Airbnb, Kickstarter and others.”
Jason Tan May 27, 2014 ▶ 0:19 Jason Tan, Sift Science // Data Driven #26 // April 2014 (Hosted by FirstMark Capital)
Assertion Partly supported
Justin Borgman: Starburst created Trino, used by Netflix, Airbnb, and LinkedIn
“We're the creators of an open source project called Trino, which is a pretty popular project used by a lot of the Big internet companies like Netflix and Airbnb and LinkedIn and so forth.”
Justin Borgman Jan 30, 2025 ▶ 1:47 Trino, Iceberg and the Battle for the Lakehouse | Justin Borgman, CEO, Starburst
Assertion Supported
Apache Airflow was created in 2014 at Airbnb
“Airflow was founded in 2014 at Airbnb, and it's an absolutely viral open source project.”
Viraj Parekh Oct 10, 2022 ▶ 3:26 Modern Data Orchestration | Astronomer Co-Founders Pete DeJoy & Viraj Parekh
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