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 5 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
Stein: Google Shopping has 50B products updated 2B times hourly
“There's fifty billion products in the Google shopping graph, for instance, they're updated two billion times an hour by merchants with live prices, right? You have two and fifty million places in maps.”
Robby Stein Oct 10, 2025 ▶ 11:23 Inside Google's AI turnaround: AI Mode, AI Overviews, and vision for AI-powered search | Robby Stein
Assertion Contradicted
Taylor: Google Maps hit 90M users in one day in 2005
“In August of 22,005. We integrated satellite imagery from a recent acquisition called Keyhole, which became Google Earth, and we got ninety million people using it on the same day.”
Bret Taylor Jul 31, 2025 ▶ 9:42 He saved OpenAI, invented the “Like” button, and built Google Maps: Bret Taylor (Sierra)
Insight
Naming mainstream apps during PM discovery interviews is an instant failure
“One of my favorite interview questions is to ask, tell me about a product that you recently discovered that you were super passionate about. You say, I worked for Google, but it's an instant failure. You say Google Maps or Gmail or Facebook. It just tells me y…”
Ebi Atawodi Jan 18, 2025 ▶ 12:34 Crafting A Compelling Product Vision (Ebi Atawodi) | Lenny & Friends Summit 2024
Assertion Supported
Egner: VaccinateCA provided the COVID-19 vaccine location data for Google Maps
“And we built an API. We were working directly with Google, and if you ever looked up, like, vaccine locations on Google Maps, that was us feeding that to them, which was really cool.”
Zoelle Egner Jan 29, 2023 ▶ 7:43 Lessons from Airtable’s unconventional growth strategy | Zoelle Egner
Assertion Contradicted
Taylor: Google Maps reached 10M users on its first day
“When we launched Google maps, we got about ten million people using on the first day, which at that scale of the internet at the time was huge.”
Bret Taylor Jul 31, 2025 ▶ 9:34 He saved OpenAI, invented the “Like” button, and built Google Maps: Bret Taylor (Sierra)
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