What we collect.

Reading this site. We use Cloudflare Web Analytics, which counts page views without cookies and without identifying you. There are no advertising trackers.

Subscribing. When you subscribe, your email address is sent to Substack, which holds the list and sends the Weekly Brief. Substack's own privacy policy applies to that data. You can unsubscribe from any email.

Writing to us. If you email arrol@arrolcrast.com, we use your message only to reply. Ask and we will delete it.

Last updated September 2026.