A PM at a CRO you've pitched three times just installed a browser extension. She highlights your last email, right-clicks, and gets a verdict in two seconds: AI-assisted. She doesn't say anything. She just quietly moves your reply to the bottom of the pile. This isn't hypothetical any more. Pangram, the detection tool built by ex-Google engineers, now lives inside Chrome. It scans LinkedIn, Substack, Reddit, Google Docs - and it doesn't stop at obvious tells like em dashes or "it's not X,...