Cloudflare wants to replace CAPTCHAs with Turnstile – https://techcrunch.com/2022/09/28/cloudflare-wants-to-replace-captchas-with-turnstile/
“Turnstile automatically chooses a browser challenge based on ‘telemetry and client behavior exhibited during a session,’ Cloudflare says, rather than factors like login cookies. After running non-interactive JavaScript challenges to gather signals about the visitor and browser environment and using AI models to detect features and visitors who’ve passed a challenge before. . . .”