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 6 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
Schwartz: Apple Refused Microsoft’s Offer to Replace Google with Bing for Free
“One is that Bing tried to give itself to Apple for free, and Apple said there was absolutely no price that they would take to use Bing search within Apple.”
Eli Schwartz Sep 19, 2024 ▶ 1:19:40 Rethinking SEO in the age of AI | Eli Schwartz (SEO advisor, author)
Assertion Supported
Microsoft's overall experiment failure rate is 66%, reaching 85% at Bing
“So overall at Microsoft, About 66%, two-thirds of ideas fail, right? And don't think the 66 is accurate. Like, you know, it's about two-thirds. At Bing, which is a much more optimized domain after we've been optimizing it for a while, the failure rate was arou…”
Ronny Kohavi Jul 27, 2023 ▶ 13:36 The ultimate guide to A/B testing | Ronny Kohavi (Airbnb, Microsoft, Amazon)
Assertion Supported
Bing wasted 100 person-years integrating social feeds before shutting it down
“We hooked into the Twitter Firehose feed, and we hooked into Facebook, and we spent a hundred person years on this idea, and it failed. You don't see it anymore. It existed for about a year and a half, and all the experiments were just negative to flat.”
Ronny Kohavi Jul 27, 2023 ▶ 23:02 The ultimate guide to A/B testing | Ronny Kohavi (Airbnb, Microsoft, Amazon)
Assertion Supported
Moving Bing ad text to the headline generated $100 million
“This thing was worth a hundred million dollars at the time when Bing was a lot smaller.”
Ronny Kohavi Jul 27, 2023 ▶ 7:17 The ultimate guide to A/B testing | Ronny Kohavi (Airbnb, Microsoft, Amazon)
Assertion Not checkable as stated
Bing's search relevance team targets 2% annual compounding improvement
“One is at Bing, the relevance team. Hundreds of people all working to improve Bing relevance. They have a metric. We'll talk about, oh, we see the overall evaluation criterion, but they have a metric that their goal is to improve it by two percent every year. …”
Ronny Kohavi Jul 27, 2023 ▶ 12:00 The ultimate guide to A/B testing | Ronny Kohavi (Airbnb, Microsoft, Amazon)
Assertion Supported
Bing allowed experimenters to define up to 10,000 metrics per scorecard
“At Bing, you could define 10,000 metrics that you wanted to be in your scorecard.”
Ronny Kohavi Jul 27, 2023 ▶ 1:10:55 The ultimate guide to A/B testing | Ronny Kohavi (Airbnb, Microsoft, Amazon)
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